diff --git a/implementation-contributed/curation_logs/es6.md b/implementation-contributed/curation_logs/es6.md
new file mode 100644
index 0000000000..c6d8ae620a
--- /dev/null
+++ b/implementation-contributed/curation_logs/es6.md
@@ -0,0 +1,38 @@
+- well-known_symbols_Symbol.toPrimitive.js
+    - Review coverage for Symbol.toPrimitive calls in many expressions. e.g. addition, subtractiong, comparison, etc
+- WeakSet_iterator_closing.js
+    - Based in the tests at `built-ins/WeakSet/iterator-*`, add cases for verifying the correct get and call order for the iterator next/return/throw, etc
+    - the same is valid for WeakMap, Set, and Map
+- Unicode_code_point_escapes_in_identifiers.js / Unicode_code_point_escapes_in_strings.js
+    - Needs coverage for cases using unicode code point escapes in:
+        - `language/identifiers`
+        - `language/reserved-words`
+        - `language/literals`
+        - `language/keywords`
+        - `language/directive-prologue`
+        - `language/white-space`
+        - arguments object?
+        - etc
+- Symbol_JSON.stringify_ignores_symbols.js
+    - Cover Symbol values in JSON.stringify (`built-ins/JSON/stringify`)
+- Set_-0_key_converts_to_+0.js
+    - `built-ins/Set/will-not-add-duplicate-entry-normalizes-zero.js`: reconsider verifying -0 normalization fetching the values from the Set.
+    - Similar to Map index? Needs to verify
+- rest_parameters_new_Function_support.js
+    - Add coverage composing fns through `new Function` using rest operators in strings
+    - expand to other function constructors
+- rest_parameters_cant_be_used_in_setters.js
+    - Couldn't find coverage for rest parameters disallowed in setters, needs double check
+- Proxy_JSON.stringify_support.js
+    - Is it worth adding JSON.stringify behavior over Proxied objects?
+- Proxy_internal_set_calls_Array.prototype.push.js / Proxy_internal_set_calls_*.js / Proxy_internal_get_calls_*.js
+    - It is interesting to verify Array/String/RegExp/etc methods calling internals being observed with exotic proxy objects.
+    - This is a coverage for each method, not Proxy.
+    - Rather than add these operations to each method, but most of the Array methods have malstructured legacy tests.
+    - It's recommended to review the coverage and recreate tests, adding cases where calls to internals are observed like in this example.
+- prototype_of_bound_functions_arrow_functions.js
+    - Add coverage for bound special functions
+    - Add coverage for checking the prototypes...
+    - Add coverage for bound class methods (include static and private)
+- Object_static_methods_accept_primitives_Object.freeze.js
+    - Needs Coverage Object static methods - e.g. `Object.freeze` - receiving non object values
\ No newline at end of file
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.copyWithin.js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.copyWithin.js
deleted file mode 100644
index 0cdc8caec6..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.copyWithin.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Array.prototype.copyWithin === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.entries.js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.entries.js
deleted file mode 100644
index 4a67ae3db6..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.entries.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Array.prototype.entries === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.fill.js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.fill.js
deleted file mode 100644
index cf27ffe295..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.fill.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Array.prototype.fill === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.find.js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.find.js
deleted file mode 100644
index 961de57318..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.find.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Array.prototype.find === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.findIndex.js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.findIndex.js
deleted file mode 100644
index 15eac9e18b..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.findIndex.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Array.prototype.findIndex === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.keys.js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.keys.js
deleted file mode 100644
index 2e3577e3d2..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.keys.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Array.prototype.keys === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.values.js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.values.js
deleted file mode 100644
index e4c4f03137..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype.values.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Array.prototype.values === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype[Symbol.iterator].js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype[Symbol.iterator].js
deleted file mode 100644
index 18afba577a..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype[Symbol.iterator].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Array.prototype[Symbol.iterator] === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype[Symbol.unscopables].js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype[Symbol.unscopables].js
deleted file mode 100644
index d00a5c6530..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array.prototype[Symbol.unscopables].js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var unscopables = Array.prototype[Symbol.unscopables];
-if (!unscopables) {
-  return false;
-}
-var ns = "find,findIndex,fill,copyWithin,entries,keys,values".split(",");
-for (var i = 0; i < ns.length; i++) {
-  if (Array.prototype[ns[i]] && !unscopables[ns[i]]) return false;
-}
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array_iterator_prototype_chain.js b/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array_iterator_prototype_chain.js
deleted file mode 100644
index 4122dd188a..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array.prototype_methods_Array_iterator_prototype_chain.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-// Iterator instance
-var iterator = [][Symbol.iterator]();
-// %ArrayIteratorPrototype%
-var proto1 = Object.getPrototypeOf(iterator);
-// %IteratorPrototype%
-var proto2 = Object.getPrototypeOf(proto1);
-
-return proto2.hasOwnProperty(Symbol.iterator) &&
-  !proto1    .hasOwnProperty(Symbol.iterator) &&
-  !iterator  .hasOwnProperty(Symbol.iterator) &&
-  iterator[Symbol.iterator]() === iterator;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.from.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.from.js
deleted file mode 100644
index 3a98548e8c..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.from.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-class C extends Array {}
-return C.from({ length: 0 }) instanceof C;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.isArray_support.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.isArray_support.js
deleted file mode 100644
index 792c8b190d..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.isArray_support.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-class C extends Array {}
-return Array.isArray(new C());
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.of.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.of.js
deleted file mode 100644
index 86692b2a0d..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.of.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-class C extends Array {}
-return C.of(0) instanceof C;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.concat.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.concat.js
deleted file mode 100644
index 3d3eb96ff7..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.concat.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Array {}
-var c = new C();
-return c.concat(1) instanceof C;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.filter.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.filter.js
deleted file mode 100644
index 7b75b0b60b..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.filter.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Array {}
-var c = new C();
-return c.filter(Boolean) instanceof C;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.map.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.map.js
deleted file mode 100644
index 0acea18cd7..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.map.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Array {}
-var c = new C();
-return c.map(Boolean) instanceof C;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.slice.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.slice.js
deleted file mode 100644
index a3362ca401..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.slice.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-class C extends Array {}
-var c = new C();
-c.push(2,4,6);
-return c.slice(1,2) instanceof C;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.splice.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.splice.js
deleted file mode 100644
index 6dbad9bf68..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_Array.prototype.splice.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-class C extends Array {}
-var c = new C();
-c.push(2,4,6);
-return c.splice(1,2) instanceof C;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_correct_prototype_chain.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_correct_prototype_chain.js
deleted file mode 100644
index d1df1499b0..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_correct_prototype_chain.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Array {}
-var c = new C();
-return c instanceof C && c instanceof Array && Object.getPrototypeOf(C) === Array;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_length_property_accessing.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_length_property_accessing.js
deleted file mode 100644
index 9782375337..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_length_property_accessing.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-class C extends Array {}
-var c = new C();
-var len1 = c.length;
-c[2] = 'foo';
-var len2 = c.length;
-return len1 === 0 && len2 === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_length_property_setting.js b/implementation-contributed/javascriptcore/es6/Array_is_subclassable_length_property_setting.js
deleted file mode 100644
index a8216a75ec..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_is_subclassable_length_property_setting.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-class C extends Array {}
-var c = new C();
-c[2] = 'foo';
-c.length = 1;
-return c.length === 1 && !(2 in c);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_array-like_objects.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_array-like_objects.js
deleted file mode 100644
index bee9b89148..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_array-like_objects.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Array.from({ 0: "foo", 1: "bar", length: 2 }) + '' === "foo,bar";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_generator_instances.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_generator_instances.js
deleted file mode 100644
index 78ca4a7c32..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_generator_instances.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var iterable = (function*(){ yield 1; yield 2; yield 3; }());
-return Array.from(iterable) + '' === "1,2,3";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_generic_iterables.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_generic_iterables.js
deleted file mode 100644
index 8989eb9544..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_generic_iterables.js
+++ /dev/null
@@ -1,30 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterable = global.__createIterableObject([1, 2, 3]);
-return Array.from(iterable) + '' === "1,2,3";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_instances_of_generic_iterables.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_instances_of_generic_iterables.js
deleted file mode 100644
index 15681ef39b..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_instances_of_generic_iterables.js
+++ /dev/null
@@ -1,30 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterable = global.__createIterableObject([1, 2, 3]);
-return Array.from(Object.create(iterable)) + '' === "1,2,3";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_iterator_closing.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_iterator_closing.js
deleted file mode 100644
index 37ecd2280c..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_iterator_closing.js
+++ /dev/null
@@ -1,36 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var closed = false;
-var iter = global.__createIterableObject([1, 2, 3], {
-  'return': function(){ closed = true; return {}; }
-});
-try {
-  Array.from(iter, function() { throw 42 });
-} catch(e){}
-return closed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_array-like_objects.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_array-like_objects.js
deleted file mode 100644
index 1db3057110..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_array-like_objects.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return Array.from({ 0: "foo", 1: "bar", length: 2 }, function(e, i) {
-  return e + this.baz + i;
-}, { baz: "d" }) + '' === "food0,bard1";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_generator_instances.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_generator_instances.js
deleted file mode 100644
index e5d566283e..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_generator_instances.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var iterable = (function*(){ yield "foo"; yield "bar"; yield "bal"; }());
-return Array.from(iterable, function(e, i) {
-  return e + this.baz + i;
-}, { baz: "d" }) + '' === "food0,bard1,bald2";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_generic_iterables.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_generic_iterables.js
deleted file mode 100644
index 232a84d5e8..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_generic_iterables.js
+++ /dev/null
@@ -1,32 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterable = global.__createIterableObject(["foo", "bar", "bal"]);
-return Array.from(iterable, function(e, i) {
-  return e + this.baz + i;
-}, { baz: "d" }) + '' === "food0,bard1,bald2";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_instances_of_iterables.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_instances_of_iterables.js
deleted file mode 100644
index 74d277b4d1..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.from_map_function_instances_of_iterables.js
+++ /dev/null
@@ -1,32 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterable = global.__createIterableObject(["foo", "bar", "bal"]);
-return Array.from(Object.create(iterable), function(e, i) {
-  return e + this.baz + i;
-}, { baz: "d" }) + '' === "food0,bard1,bald2";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.of.js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.of.js
deleted file mode 100644
index 040d4ca84d..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array.of.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return typeof Array.of === 'function' &&
-  Array.of(2)[0] === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array[Symbol.species].js b/implementation-contributed/javascriptcore/es6/Array_static_methods_Array[Symbol.species].js
deleted file mode 100644
index 65fb6e0ccd..0000000000
--- a/implementation-contributed/javascriptcore/es6/Array_static_methods_Array[Symbol.species].js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var prop = Object.getOwnPropertyDescriptor(Array, Symbol.species);
-return 'get' in prop && Array[Symbol.species] === Array;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.apply.js b/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.apply.js
deleted file mode 100644
index 311dee30f3..0000000000
--- a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.apply.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Function {}
-var c = new C("x", "return this.bar + x;");
-return c.apply({bar:1}, [2]) === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.bind.js b/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.bind.js
deleted file mode 100644
index fce6c012c8..0000000000
--- a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.bind.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Function {}
-var c = new C("x", "y", "return this.bar + x + y;").bind({bar:1}, 2);
-return c(6) === 9 && c instanceof C;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.call.js b/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.call.js
deleted file mode 100644
index 77ed438114..0000000000
--- a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_Function.prototype.call.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Function {}
-var c = new C("x", "return this.bar + x;");
-return c.call({bar:1}, 2) === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_can_be_called.js b/implementation-contributed/javascriptcore/es6/Function_is_subclassable_can_be_called.js
deleted file mode 100644
index d662d77cb7..0000000000
--- a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_can_be_called.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Function {}
-var c = new C("return 'foo';");
-return c() === 'foo';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_can_be_used_with_new.js b/implementation-contributed/javascriptcore/es6/Function_is_subclassable_can_be_used_with_new.js
deleted file mode 100644
index 9c7839870c..0000000000
--- a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_can_be_used_with_new.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-class C extends Function {}
-var c = new C("this.bar = 2;");
-c.prototype.baz = 3;
-return new c().bar === 2 && new c().baz === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_correct_prototype_chain.js b/implementation-contributed/javascriptcore/es6/Function_is_subclassable_correct_prototype_chain.js
deleted file mode 100644
index caaee439d7..0000000000
--- a/implementation-contributed/javascriptcore/es6/Function_is_subclassable_correct_prototype_chain.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Function {}
-var c = new C("return 'foo';");
-return c instanceof C && c instanceof Function && Object.getPrototypeOf(C) === Function;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/HTML-style_comments.js b/implementation-contributed/javascriptcore/es6/HTML-style_comments.js
deleted file mode 100644
index b4763850c3..0000000000
--- a/implementation-contributed/javascriptcore/es6/HTML-style_comments.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
---> A comment
-<!-- Another comment
-var a = 3; <!-- Another comment
-return a === 3;
-  
-}
-
-if (!test())
-    throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.clear.js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype.clear.js
deleted file mode 100644
index e5ef66c987..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.clear.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Map.prototype.clear === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.delete.js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype.delete.js
deleted file mode 100644
index aa813bb578..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.delete.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Map.prototype.delete === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.entries.js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype.entries.js
deleted file mode 100644
index 777cdfc154..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.entries.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Map.prototype.entries === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.forEach.js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype.forEach.js
deleted file mode 100644
index 1e10891a3a..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.forEach.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Map.prototype.forEach === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.keys.js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype.keys.js
deleted file mode 100644
index d861eace8d..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.keys.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Map.prototype.keys === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.set_returns_this.js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype.set_returns_this.js
deleted file mode 100644
index e3dc1d6942..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.set_returns_this.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var map = new Map();
-return map.set(0, 0) === map;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.size.js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype.size.js
deleted file mode 100644
index 7bdcbfaaef..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.size.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var key = {};
-var map = new Map();
-
-map.set(key, 123);
-
-return map.size === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.values.js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype.values.js
deleted file mode 100644
index 0a65633753..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype.values.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Map.prototype.values === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map.prototype[Symbol.iterator].js b/implementation-contributed/javascriptcore/es6/Map_Map.prototype[Symbol.iterator].js
deleted file mode 100644
index fba992b745..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map.prototype[Symbol.iterator].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Map.prototype[Symbol.iterator] === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map[Symbol.species].js b/implementation-contributed/javascriptcore/es6/Map_Map[Symbol.species].js
deleted file mode 100644
index 2a4a4a095b..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map[Symbol.species].js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var prop = Object.getOwnPropertyDescriptor(Map, Symbol.species);
-return 'get' in prop && Map[Symbol.species] === Map;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_Map_iterator_prototype_chain.js b/implementation-contributed/javascriptcore/es6/Map_Map_iterator_prototype_chain.js
deleted file mode 100644
index 37ad6edc3a..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_Map_iterator_prototype_chain.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-// Iterator instance
-var iterator = new Map()[Symbol.iterator]();
-// %MapIteratorPrototype%
-var proto1 = Object.getPrototypeOf(iterator);
-// %IteratorPrototype%
-var proto2 = Object.getPrototypeOf(proto1);
-
-return proto2.hasOwnProperty(Symbol.iterator) &&
-  !proto1    .hasOwnProperty(Symbol.iterator) &&
-  !iterator  .hasOwnProperty(Symbol.iterator) &&
-  iterator[Symbol.iterator]() === iterator;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_basic_functionality.js b/implementation-contributed/javascriptcore/es6/Map_basic_functionality.js
deleted file mode 100644
index 513e7a178b..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_basic_functionality.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var key = {};
-var map = new Map();
-
-map.set(key, 123);
-
-return map.has(key) && map.get(key) === 123;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_constructor_accepts_null.js b/implementation-contributed/javascriptcore/es6/Map_constructor_accepts_null.js
deleted file mode 100644
index e31e89ebd3..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_constructor_accepts_null.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-new Map(null);
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_constructor_arguments.js b/implementation-contributed/javascriptcore/es6/Map_constructor_arguments.js
deleted file mode 100644
index 164ccfeca3..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_constructor_arguments.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var key1 = {};
-var key2 = {};
-var map = new Map([[key1, 123], [key2, 456]]);
-
-return map.has(key1) && map.get(key1) === 123 &&
-       map.has(key2) && map.get(key2) === 456;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_constructor_invokes_set.js b/implementation-contributed/javascriptcore/es6/Map_constructor_invokes_set.js
deleted file mode 100644
index 45242d22b7..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_constructor_invokes_set.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-var passed = false;
-var _set = Map.prototype.set;
-
-Map.prototype.set = function(k, v) {
-  passed = true;
-};
-
-new Map([ [1, 2] ]);
-Map.prototype.set = _set;
-
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_constructor_requires_new.js b/implementation-contributed/javascriptcore/es6/Map_constructor_requires_new.js
deleted file mode 100644
index 9eb6bc56b1..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_constructor_requires_new.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-new Map();
-try {
-  Map();
-  return false;
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Map_iterator_closing.js b/implementation-contributed/javascriptcore/es6/Map_iterator_closing.js
deleted file mode 100644
index d77b5f1dc3..0000000000
--- a/implementation-contributed/javascriptcore/es6/Map_iterator_closing.js
+++ /dev/null
@@ -1,36 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var closed = false;
-var iter = global.__createIterableObject([1, 2, 3], {
-  'return': function(){ closed = true; return {}; }
-});
-try {
-  new Map(iter);
-} catch(e){}
-return closed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.acosh.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.acosh.js
deleted file mode 100644
index 25748e4b97..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.acosh.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.acosh === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.asinh.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.asinh.js
deleted file mode 100644
index c08621178f..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.asinh.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.asinh === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.atanh.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.atanh.js
deleted file mode 100644
index c32828a075..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.atanh.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.atanh === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.cbrt.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.cbrt.js
deleted file mode 100644
index 02c83d2606..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.cbrt.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.cbrt === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.clz32.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.clz32.js
deleted file mode 100644
index 0879e39e2a..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.clz32.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.clz32 === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.cosh.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.cosh.js
deleted file mode 100644
index 27ed25510b..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.cosh.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.cosh === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.expm1.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.expm1.js
deleted file mode 100644
index f967ca132e..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.expm1.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.expm1 === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.fround.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.fround.js
deleted file mode 100644
index 1186ea97b4..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.fround.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.fround === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.hypot.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.hypot.js
deleted file mode 100644
index b04571d5fe..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.hypot.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-return Math.hypot() === 0 &&
-  Math.hypot(1) === 1 &&
-  Math.hypot(9, 12, 20) === 25 &&
-  Math.hypot(27, 36, 60, 100) === 125;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.imul.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.imul.js
deleted file mode 100644
index 1ab0bcebc5..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.imul.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.imul === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.log10.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.log10.js
deleted file mode 100644
index ace1bc7022..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.log10.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.log10 === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.log1p.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.log1p.js
deleted file mode 100644
index 1304585ab3..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.log1p.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.log1p === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.log2.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.log2.js
deleted file mode 100644
index a783eb8463..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.log2.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.log2 === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.sign.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.sign.js
deleted file mode 100644
index 2c22536b3d..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.sign.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.sign === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.sinh.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.sinh.js
deleted file mode 100644
index b53e6bfb63..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.sinh.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.sinh === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.tanh.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.tanh.js
deleted file mode 100644
index c43fdfcb29..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.tanh.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.tanh === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Math_methods_Math.trunc.js b/implementation-contributed/javascriptcore/es6/Math_methods_Math.trunc.js
deleted file mode 100644
index 5eedc749a4..0000000000
--- a/implementation-contributed/javascriptcore/es6/Math_methods_Math.trunc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Math.trunc === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Number_properties_Number.EPSILON.js b/implementation-contributed/javascriptcore/es6/Number_properties_Number.EPSILON.js
deleted file mode 100644
index b10b238931..0000000000
--- a/implementation-contributed/javascriptcore/es6/Number_properties_Number.EPSILON.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Number.EPSILON === 'number';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Number_properties_Number.MAX_SAFE_INTEGER.js b/implementation-contributed/javascriptcore/es6/Number_properties_Number.MAX_SAFE_INTEGER.js
deleted file mode 100644
index 952104c3c0..0000000000
--- a/implementation-contributed/javascriptcore/es6/Number_properties_Number.MAX_SAFE_INTEGER.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Number.MAX_SAFE_INTEGER === 'number';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Number_properties_Number.MIN_SAFE_INTEGER.js b/implementation-contributed/javascriptcore/es6/Number_properties_Number.MIN_SAFE_INTEGER.js
deleted file mode 100644
index 438ece24ea..0000000000
--- a/implementation-contributed/javascriptcore/es6/Number_properties_Number.MIN_SAFE_INTEGER.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Number.MIN_SAFE_INTEGER === 'number';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Number_properties_Number.isFinite.js b/implementation-contributed/javascriptcore/es6/Number_properties_Number.isFinite.js
deleted file mode 100644
index 8efc720f62..0000000000
--- a/implementation-contributed/javascriptcore/es6/Number_properties_Number.isFinite.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Number.isFinite === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Number_properties_Number.isInteger.js b/implementation-contributed/javascriptcore/es6/Number_properties_Number.isInteger.js
deleted file mode 100644
index 879c234dc4..0000000000
--- a/implementation-contributed/javascriptcore/es6/Number_properties_Number.isInteger.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Number.isInteger === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Number_properties_Number.isNaN.js b/implementation-contributed/javascriptcore/es6/Number_properties_Number.isNaN.js
deleted file mode 100644
index 26456dfe50..0000000000
--- a/implementation-contributed/javascriptcore/es6/Number_properties_Number.isNaN.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Number.isNaN === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Number_properties_Number.isSafeInteger.js b/implementation-contributed/javascriptcore/es6/Number_properties_Number.isSafeInteger.js
deleted file mode 100644
index e5f9374def..0000000000
--- a/implementation-contributed/javascriptcore/es6/Number_properties_Number.isSafeInteger.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Number.isSafeInteger === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___absent_from_Object.createnull.js b/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___absent_from_Object.createnull.js
deleted file mode 100644
index 90fefbd788..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___absent_from_Object.createnull.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var o = Object.create(null), p = {};
-o.__proto__ = p;
-return Object.getPrototypeOf(o) !== p;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___correct_property_descriptor.js b/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___correct_property_descriptor.js
deleted file mode 100644
index d0e24bde79..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___correct_property_descriptor.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var desc = Object.getOwnPropertyDescriptor(Object.prototype,"__proto__");
-var A = function(){};
-
-return (desc
-  && "get" in desc
-  && "set" in desc
-  && desc.configurable
-  && !desc.enumerable);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___get_prototype.js b/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___get_prototype.js
deleted file mode 100644
index a97d00e267..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___get_prototype.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var A = function(){};
-return (new A()).__proto__ === A.prototype;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___present_in_Object.getOwnPropertyNames.js b/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___present_in_Object.getOwnPropertyNames.js
deleted file mode 100644
index ce02a1b698..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___present_in_Object.getOwnPropertyNames.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Object.getOwnPropertyNames(Object.prototype).indexOf('__proto__') > -1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___present_in_hasOwnProperty.js b/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___present_in_hasOwnProperty.js
deleted file mode 100644
index 1e6cd40b06..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___present_in_hasOwnProperty.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Object.prototype.hasOwnProperty('__proto__');
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___set_prototype.js b/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___set_prototype.js
deleted file mode 100644
index cbeee6c7a8..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object.prototype.__proto___set_prototype.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var o = {};
-o.__proto__ = Array.prototype;
-return o instanceof Array;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.assign.js b/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.assign.js
deleted file mode 100644
index 612667a998..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.assign.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var o = Object.assign({a:true}, {b:true}, {c:true});
-return "a" in o && "b" in o && "c" in o;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.getOwnPropertySymbols.js b/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.getOwnPropertySymbols.js
deleted file mode 100644
index 611c50a3eb..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.getOwnPropertySymbols.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var o = {};
-var sym = Symbol(), sym2 = Symbol(), sym3 = Symbol();
-o[sym]  = true;
-o[sym2] = true;
-o[sym3] = true;
-var result = Object.getOwnPropertySymbols(o);
-return result[0] === sym
-  && result[1] === sym2
-  && result[2] === sym3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.is.js b/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.is.js
deleted file mode 100644
index 44c0915f05..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.is.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return typeof Object.is === 'function' &&
-  Object.is(NaN, NaN) &&
- !Object.is(-0, 0);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.setPrototypeOf.js b/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.setPrototypeOf.js
deleted file mode 100644
index fd3c1ccff0..0000000000
--- a/implementation-contributed/javascriptcore/es6/Object_static_methods_Object.setPrototypeOf.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Object.setPrototypeOf({}, Array.prototype) instanceof Array;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_Promise.all.js b/implementation-contributed/javascriptcore/es6/Promise_Promise.all.js
deleted file mode 100644
index 3a6622ae61..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_Promise.all.js
+++ /dev/null
@@ -1,29 +0,0 @@
-function test() {
-var passed = false;
-function asyncTestPassed() {
-    passed = true;
-}
-
-var fulfills = Promise.all([
-  new Promise(function(resolve)   { setTimeout(resolve,200,"foo"); }),
-  new Promise(function(resolve)   { setTimeout(resolve,100,"bar"); }),
-]);
-var rejects = Promise.all([
-  new Promise(function(_, reject) { setTimeout(reject, 200,"baz"); }),
-  new Promise(function(_, reject) { setTimeout(reject, 100,"qux"); }),
-]);
-var score = 0;
-fulfills.then(function(result) { score += (result + "" === "foo,bar"); check(); });
-rejects.catch(function(result) { score += (result === "qux"); check(); });
-
-function check() {
-  if (score === 2) asyncTestPassed();
-}
-      
-drainMicrotasks();
-return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_Promise.all_generic_iterables.js b/implementation-contributed/javascriptcore/es6/Promise_Promise.all_generic_iterables.js
deleted file mode 100644
index 6aa6ce0d5f..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_Promise.all_generic_iterables.js
+++ /dev/null
@@ -1,49 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-var passed = false;
-function asyncTestPassed() {
-    passed = true;
-}
-
-var fulfills = Promise.all(global.__createIterableObject([
-  new Promise(function(resolve)   { setTimeout(resolve,200,"foo"); }),
-  new Promise(function(resolve)   { setTimeout(resolve,100,"bar"); }),
-]));
-var rejects = Promise.all(global.__createIterableObject([
-  new Promise(function(_, reject) { setTimeout(reject, 200,"baz"); }),
-  new Promise(function(_, reject) { setTimeout(reject, 100,"qux"); }),
-]));
-var score = 0;
-fulfills.then(function(result) { score += (result + "" === "foo,bar"); check(); });
-rejects.catch(function(result) { score += (result === "qux"); check(); });
-
-function check() {
-  if (score === 2) asyncTestPassed();
-}
-      
-drainMicrotasks();
-return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_Promise.race.js b/implementation-contributed/javascriptcore/es6/Promise_Promise.race.js
deleted file mode 100644
index 4207c56488..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_Promise.race.js
+++ /dev/null
@@ -1,29 +0,0 @@
-function test() {
-var passed = false;
-function asyncTestPassed() {
-    passed = true;
-}
-
-var fulfills = Promise.race([
-  new Promise(function(resolve)   { setTimeout(resolve,200,"foo"); }),
-  new Promise(function(_, reject) { setTimeout(reject, 300,"bar"); }),
-]);
-var rejects = Promise.race([
-  new Promise(function(_, reject) { setTimeout(reject, 200,"baz"); }),
-  new Promise(function(resolve)   { setTimeout(resolve,300,"qux"); }),
-]);
-var score = 0;
-fulfills.then(function(result) { score += (result === "foo"); check(); });
-rejects.catch(function(result) { score += (result === "baz"); check(); });
-
-function check() {
-  if (score === 2) asyncTestPassed();
-}
-      
-drainMicrotasks();
-return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_Promise.race_generic_iterables.js b/implementation-contributed/javascriptcore/es6/Promise_Promise.race_generic_iterables.js
deleted file mode 100644
index b94d6d5601..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_Promise.race_generic_iterables.js
+++ /dev/null
@@ -1,49 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-var passed = false;
-function asyncTestPassed() {
-    passed = true;
-}
-
-var fulfills = Promise.race(global.__createIterableObject([
-  new Promise(function(resolve)   { setTimeout(resolve,200,"foo"); }),
-  new Promise(function(_, reject) { setTimeout(reject, 300,"bar"); }),
-]));
-var rejects = Promise.race(global.__createIterableObject([
-  new Promise(function(_, reject) { setTimeout(reject, 200,"baz"); }),
-  new Promise(function(resolve)   { setTimeout(resolve,300,"qux"); }),
-]));
-var score = 0;
-fulfills.then(function(result) { score += (result === "foo"); check(); });
-rejects.catch(function(result) { score += (result === "baz"); check(); });
-
-function check() {
-  if (score === 2) asyncTestPassed();
-}
-      
-drainMicrotasks();
-return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_Promise[Symbol.species].js b/implementation-contributed/javascriptcore/es6/Promise_Promise[Symbol.species].js
deleted file mode 100644
index 6d3eaadbac..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_Promise[Symbol.species].js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var prop = Object.getOwnPropertyDescriptor(Promise, Symbol.species);
-return 'get' in prop && Promise[Symbol.species] === Promise;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_basic_functionality.js b/implementation-contributed/javascriptcore/es6/Promise_basic_functionality.js
deleted file mode 100644
index e7a22ab9eb..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_basic_functionality.js
+++ /dev/null
@@ -1,36 +0,0 @@
-function test() {
-var passed = false;
-function asyncTestPassed() {
-    passed = true;
-}
-
-var p1 = new Promise(function(resolve, reject) { resolve("foo"); });
-var p2 = new Promise(function(resolve, reject) { reject("quux"); });
-var score = 0;
-
-function thenFn(result)  { score += (result === "foo");  check(); }
-function catchFn(result) { score += (result === "quux"); check(); }
-function shouldNotRun(result)  { score = -Infinity;   }
-
-p1.then(thenFn, shouldNotRun);
-p2.then(shouldNotRun, catchFn);
-p1.catch(shouldNotRun);
-p2.catch(catchFn);
-
-p1.then(function() {
-  // Promise.prototype.then() should return a new Promise
-  score += p1.then() !== p1;
-  check();
-});
-
-function check() {
-  if (score === 4) asyncTestPassed();
-}
-      
-drainMicrotasks();
-return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_constructor_requires_new.js b/implementation-contributed/javascriptcore/es6/Promise_constructor_requires_new.js
deleted file mode 100644
index 33468e94a0..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_constructor_requires_new.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-new Promise(function(){});
-try {
-  Promise(function(){});
-  return false;
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_Promise.all.js b/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_Promise.all.js
deleted file mode 100644
index b61bb486a0..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_Promise.all.js
+++ /dev/null
@@ -1,30 +0,0 @@
-function test() {
-var passed = false;
-function asyncTestPassed() {
-    passed = true;
-}
-
-class P extends Promise {}
-var fulfills = P.all([
-  new Promise(function(resolve)   { setTimeout(resolve,200,"foo"); }),
-  new Promise(function(resolve)   { setTimeout(resolve,100,"bar"); }),
-]);
-var rejects = P.all([
-  new Promise(function(_, reject) { setTimeout(reject, 200,"baz"); }),
-  new Promise(function(_, reject) { setTimeout(reject, 100,"qux"); }),
-]);
-var score = +(fulfills instanceof P);
-fulfills.then(function(result) { score += (result + "" === "foo,bar"); check(); });
-rejects.catch(function(result) { score += (result === "qux"); check(); });
-
-function check() {
-  if (score === 3) asyncTestPassed();
-}
-      
-drainMicrotasks();
-return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_Promise.race.js b/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_Promise.race.js
deleted file mode 100644
index 4d3a555008..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_Promise.race.js
+++ /dev/null
@@ -1,30 +0,0 @@
-function test() {
-var passed = false;
-function asyncTestPassed() {
-    passed = true;
-}
-
-class P extends Promise {}
-var fulfills = P.race([
-  new Promise(function(resolve)   { setTimeout(resolve,200,"foo"); }),
-  new Promise(function(_, reject) { setTimeout(reject, 300,"bar"); }),
-]);
-var rejects = P.race([
-  new Promise(function(_, reject) { setTimeout(reject, 200,"baz"); }),
-  new Promise(function(resolve)   { setTimeout(resolve,300,"qux"); }),
-]);
-var score = +(fulfills instanceof P);
-fulfills.then(function(result) { score += (result === "foo"); check(); });
-rejects.catch(function(result) { score += (result === "baz"); check(); });
-
-function check() {
-  if (score === 3) asyncTestPassed();
-}
-      
-drainMicrotasks();
-return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_basic_functionality.js b/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_basic_functionality.js
deleted file mode 100644
index 2045aeec7e..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_basic_functionality.js
+++ /dev/null
@@ -1,37 +0,0 @@
-function test() {
-var passed = false;
-function asyncTestPassed() {
-    passed = true;
-}
-
-class P extends Promise {}
-var p1 = new P(function(resolve, reject) { resolve("foo"); });
-var p2 = new P(function(resolve, reject) { reject("quux"); });
-var score = +(p1 instanceof P);
-
-function thenFn(result)  { score += (result === "foo");  check(); }
-function catchFn(result) { score += (result === "quux"); check(); }
-function shouldNotRun(result)  { score = -Infinity;   }
-
-p1.then(thenFn, shouldNotRun);
-p2.then(shouldNotRun, catchFn);
-p1.catch(shouldNotRun);
-p2.catch(catchFn);
-
-p1.then(function() {
-  // P.prototype.then() should return a new P
-  score += p1.then() instanceof P && p1.then() !== p1;
-  check();
-});
-
-function check() {
-  if (score === 5) asyncTestPassed();
-}
-      
-drainMicrotasks();
-return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_correct_prototype_chain.js b/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_correct_prototype_chain.js
deleted file mode 100644
index 0138a03aac..0000000000
--- a/implementation-contributed/javascriptcore/es6/Promise_is_subclassable_correct_prototype_chain.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class C extends Promise {}
-var c = new C(function(resolve, reject) { resolve("foo"); });
-return c instanceof C && c instanceof Promise && Object.getPrototypeOf(C) === Promise;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_Array.isArray_support.js b/implementation-contributed/javascriptcore/es6/Proxy_Array.isArray_support.js
deleted file mode 100644
index bb02f37945..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_Array.isArray_support.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Array.isArray(new Proxy([], {}));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_JSON.stringify_support.js b/implementation-contributed/javascriptcore/es6/Proxy_JSON.stringify_support.js
index c908ee1d40..cd936c1da9 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_JSON.stringify_support.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_JSON.stringify_support.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 return JSON.stringify(new Proxy(['foo'], {})) === '["foo"]';
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_Proxy.revocable.js b/implementation-contributed/javascriptcore/es6/Proxy_Proxy.revocable.js
deleted file mode 100644
index 9cca73e70e..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_Proxy.revocable.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var obj = Proxy.revocable({}, { get: function() { return 5; } });
-var passed = (obj.proxy.foo === 5);
-obj.revoke();
-try {
-  obj.proxy.foo;
-} catch(e) {
-  passed &= e instanceof TypeError;
-}
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_apply_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_apply_handler.js
deleted file mode 100644
index e7e78c4a00..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_apply_handler.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-var proxied = function(){};
-var passed = false;
-var host = {
-  method: new Proxy(proxied, {
-    apply: function (t, thisArg, args) {
-      passed = t === proxied && thisArg === host && args + "" === "foo,bar";
-    }
-  })
-};
-host.method("foo", "bar");
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_construct_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_construct_handler.js
deleted file mode 100644
index 05980c7560..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_construct_handler.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var proxied = function(){};
-var passed = false;
-new new Proxy(proxied, {
-  construct: function (t, args) {
-    passed = t === proxied && args + "" === "foo,bar";
-    return {};
-  }
-})("foo","bar");
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_constructor_requires_new.js b/implementation-contributed/javascriptcore/es6/Proxy_constructor_requires_new.js
deleted file mode 100644
index d4aa3efb95..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_constructor_requires_new.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-new Proxy({}, {});
-try {
-  Proxy({}, {});
-  return false;
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_defineProperty_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_defineProperty_handler.js
deleted file mode 100644
index 568fcfa105..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_defineProperty_handler.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var proxied = {};
-var passed = false;
-Object.defineProperty(
-  new Proxy(proxied, {
-    defineProperty: function (t, k, d) {
-      passed = t === proxied && k === "foo" && d.value === 5;
-      return true;
-    }
-  }),
-  "foo",
-  { value: 5, configurable: true }
-);
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_deleteProperty_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_deleteProperty_handler.js
deleted file mode 100644
index a2c4728713..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_deleteProperty_handler.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var proxied = {};
-  var passed = false;
-  delete new Proxy(proxied, {
-    deleteProperty: function (t, k) {
-      passed = t === proxied && k === "foo";
-    }
-  }).foo;
-  return passed;
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_enumerate_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_enumerate_handler.js
deleted file mode 100644
index 10aa62e8a6..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_enumerate_handler.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var proxied = {};
-var passed = false;
-for (var i in
-  new Proxy(proxied, {
-    enumerate: function (t) {
-      passed = t === proxied;
-      return {
-        next: function(){ return { done: true, value: null };}
-      };
-    }
-  })
-) { }
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_getOwnPropertyDescriptor_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_getOwnPropertyDescriptor_handler.js
deleted file mode 100644
index 17123c21e3..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_getOwnPropertyDescriptor_handler.js
+++ /dev/null
@@ -1,22 +0,0 @@
-function test() {
-
-var proxied = {};
-var fakeDesc = { value: "foo", configurable: true };
-var returnedDesc = Object.getOwnPropertyDescriptor(
-  new Proxy(proxied, {
-    getOwnPropertyDescriptor: function (t, k) {
-      return t === proxied && k === "foo" && fakeDesc;
-    }
-  }),
-  "foo"
-);
-return (returnedDesc.value     === fakeDesc.value
-  && returnedDesc.configurable === fakeDesc.configurable
-  && returnedDesc.writable     === false
-  && returnedDesc.enumerable   === false);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_getPrototypeOf_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_getPrototypeOf_handler.js
deleted file mode 100644
index b9aa93f4b3..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_getPrototypeOf_handler.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var proxied = {};
-var fakeProto = {};
-var proxy = new Proxy(proxied, {
-  getPrototypeOf: function (t) {
-    return t === proxied && fakeProto;
-  }
-});
-return Object.getPrototypeOf(proxy) === fakeProto;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_get_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_get_handler.js
deleted file mode 100644
index b208ed46e6..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_get_handler.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var proxied = { };
-var proxy = new Proxy(proxied, {
-  get: function (t, k, r) {
-    return t === proxied && k === "foo" && r === proxy && 5;
-  }
-});
-return proxy.foo === 5;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_get_handler_instances_of_proxies.js b/implementation-contributed/javascriptcore/es6/Proxy_get_handler_instances_of_proxies.js
deleted file mode 100644
index 14f4fe9d55..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_get_handler_instances_of_proxies.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var proxied = { };
-var proxy = Object.create(new Proxy(proxied, {
-  get: function (t, k, r) {
-    return t === proxied && k === "foo" && r === proxy && 5;
-  }
-}));
-return proxy.foo === 5;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_has_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_has_handler.js
deleted file mode 100644
index 000b39d4f2..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_has_handler.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var proxied = {};
-var passed = false;
-"foo" in new Proxy(proxied, {
-  has: function (t, k) {
-    passed = t === proxied && k === "foo";
-  }
-});
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_has_handler_instances_of_proxies.js b/implementation-contributed/javascriptcore/es6/Proxy_has_handler_instances_of_proxies.js
deleted file mode 100644
index 94c4180891..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_has_handler_instances_of_proxies.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var proxied = {};
-var passed = false;
-"foo" in Object.create(new Proxy(proxied, {
-  has: function (t, k) {
-    passed = t === proxied && k === "foo";
-  }
-}));
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_defineProperty_calls_SetIntegrityLevel.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_defineProperty_calls_SetIntegrityLevel.js
deleted file mode 100644
index 84877a6448..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_defineProperty_calls_SetIntegrityLevel.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// SetIntegrityLevel -> DefinePropertyOrThrow -> [[DefineOwnProperty]]
-var def = [];
-var p = new Proxy({foo:1, bar:2}, { defineProperty: function(o, v, desc) { def.push(v); Object.defineProperty(o, v, desc); return true; }});
-Object.freeze(p);
-return def + '' === "foo,bar";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_defineProperty_calls_[[Set]].js b/implementation-contributed/javascriptcore/es6/Proxy_internal_defineProperty_calls_[[Set]].js
deleted file mode 100644
index f229068433..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_defineProperty_calls_[[Set]].js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// [[Set]] -> [[DefineOwnProperty]]
-var def = [];
-var p = new Proxy({foo:1, bar:2}, { defineProperty: function(o, v, desc) { def.push(v); Object.defineProperty(o, v, desc); return true; }});
-p.foo = 2; p.bar = 4;
-return def + '' === "foo,bar";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.copyWithin.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.copyWithin.js
index 222297aff4..163f75d7ab 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.copyWithin.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.copyWithin.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.copyWithin -> DeletePropertyOrThrow -> [[Delete]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.pop.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.pop.js
index 1013783396..bc945c6f6d 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.pop.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.pop.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.pop -> DeletePropertyOrThrow -> [[Delete]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.reverse.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.reverse.js
index 946de31767..04d921e411 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.reverse.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.reverse.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.reverse -> DeletePropertyOrThrow -> [[Delete]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.shift.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.shift.js
index bdb5f0e664..bffd0d9ee0 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.shift.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.shift.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.shift -> DeletePropertyOrThrow -> [[Delete]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.splice.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.splice.js
index 3b158ee8bb..ae8cd7ddac 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.splice.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.splice.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.splice -> DeletePropertyOrThrow -> [[Delete]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.unshift.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.unshift.js
index 76ef21a8f0..49d1e65d5a 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.unshift.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_deleteProperty_calls_Array.prototype.unshift.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.unshift -> DeletePropertyOrThrow -> [[Delete]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Function.prototype.bind.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Function.prototype.bind.js
deleted file mode 100644
index 6ce6c5a1ae..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Function.prototype.bind.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-// Function.prototype.bind -> HasOwnProperty -> [[GetOwnProperty]]
-var gopd = [];
-var p = new Proxy(Function(),
-  { getOwnPropertyDescriptor: function(o, v) { gopd.push(v); return Object.getOwnPropertyDescriptor(o, v); }});
-p.bind();
-return gopd + '' === "length";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Object.assign.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Object.assign.js
deleted file mode 100644
index 374e73d18d..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Object.assign.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-// Object.assign -> [[GetOwnProperty]]
-var gopd = [];
-var p = new Proxy({foo:1, bar:2},
-  { getOwnPropertyDescriptor: function(o, v) { gopd.push(v); return Object.getOwnPropertyDescriptor(o, v); }});
-Object.assign({}, p);
-return gopd + '' === "foo,bar";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Object.prototype.hasOwnProperty.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Object.prototype.hasOwnProperty.js
deleted file mode 100644
index 391123cdc7..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_Object.prototype.hasOwnProperty.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-// Object.prototype.hasOwnProperty -> HasOwnProperty -> [[GetOwnProperty]]
-var gopd = [];
-var p = new Proxy({foo:1, bar:2},
-  { getOwnPropertyDescriptor: function(o, v) { gopd.push(v); return Object.getOwnPropertyDescriptor(o, v); }});
-p.hasOwnProperty('garply');
-return gopd + '' === "garply";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_[[Set]].js b/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_[[Set]].js
deleted file mode 100644
index d74f3e96d3..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_getOwnPropertyDescriptor_calls_[[Set]].js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-// [[Set]] -> [[GetOwnProperty]]
-var gopd = [];
-var p = new Proxy({},
-  { getOwnPropertyDescriptor: function(o, v) { gopd.push(v); return Object.getOwnPropertyDescriptor(o, v); }});
-p.foo = 1; p.bar = 1;
-return gopd + '' === "foo,bar";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.from.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.from.js
deleted file mode 100644
index 1450f5cded..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.from.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// Array.from -> Get -> [[Get]]
-var get = [];
-var p = new Proxy({length: 2, 0: '', 1: ''}, { get: function(o, k) { get.push(k); return o[k]; }});
-Array.from(p);
-return get[0] === Symbol.iterator && get.slice(1) + '' === "length,0,1";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.concat.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.concat.js
index 08824273a7..0792618380 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.concat.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.concat.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.concat -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.pop.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.pop.js
index 5c9a802874..010d4d1c13 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.pop.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.pop.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.pop -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.reverse.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.reverse.js
index 2a08f234b8..489cf3d12a 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.reverse.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.reverse.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.reverse -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.shift.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.shift.js
index 6ce585daad..d9da414409 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.shift.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.shift.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.shift -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.splice.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.splice.js
index 069bcebd2f..e07882b1c4 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.splice.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.splice.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.splice -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.toString.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.toString.js
index cc0972649a..4fe15c03ed 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.toString.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype.toString.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.toString -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype_iteration_methods.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype_iteration_methods.js
index 8038469356..48e59d92ba 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype_iteration_methods.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Array.prototype_iteration_methods.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype methods -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ClassDefinitionEvaluation.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ClassDefinitionEvaluation.js
index 06baa4c02e..aa59887129 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ClassDefinitionEvaluation.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ClassDefinitionEvaluation.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // ClassDefinitionEvaluation -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_CreateDynamicFunction.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_CreateDynamicFunction.js
index d75b4b593a..2a6e7d1042 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_CreateDynamicFunction.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_CreateDynamicFunction.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // CreateDynamicFunction -> GetPrototypeFromConstructor -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_CreateListFromArrayLike.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_CreateListFromArrayLike.js
index 6c27b78f23..37f61bdf92 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_CreateListFromArrayLike.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_CreateListFromArrayLike.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // CreateListFromArrayLike -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Date.prototype.toJSON.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Date.prototype.toJSON.js
index 932ecf7bc0..d248cdddbb 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Date.prototype.toJSON.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Date.prototype.toJSON.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Date.prototype.toJSON -> ToPrimitive -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Error.prototype.toString.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Error.prototype.toString.js
index e1df70d704..d277b3b1d3 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Error.prototype.toString.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Error.prototype.toString.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Error.prototype.toString -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Function.prototype.bind.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Function.prototype.bind.js
index 0a283cbd8e..d4323fb800 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Function.prototype.bind.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Function.prototype.bind.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Function.prototype.bind -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_HasBinding.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_HasBinding.js
index 8a3de1a096..ea2299b186 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_HasBinding.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_HasBinding.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // HasBinding -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_IteratorComplete_IteratorValue.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_IteratorComplete_IteratorValue.js
deleted file mode 100644
index 92172d0295..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_IteratorComplete_IteratorValue.js
+++ /dev/null
@@ -1,24 +0,0 @@
-function test() {
-
-// IteratorComplete -> Get -> [[Get]]
-// IteratorValue -> Get -> [[Get]]
-var get = [];
-var iterable = {};
-iterable[Symbol.iterator] = function() {
-  return {
-    next: function() {
-      return new Proxy({ value: 2, done: false }, { get: function(o, k) { get.push(k); return o[k]; }});
-    }
-  };
-}
-var i = 0;
-for(var e of iterable) {
-  if (++i >= 2) break;
-}
-return get + '' === "done,value,done,value";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_JSON.stringify.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_JSON.stringify.js
index 21df66c270..9db1424ef9 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_JSON.stringify.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_JSON.stringify.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // JSON.stringify -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Object.assign.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Object.assign.js
index 6382df5def..261c665a26 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Object.assign.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Object.assign.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Object.assign -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Object.defineProperties.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Object.defineProperties.js
deleted file mode 100644
index 0846a63c36..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Object.defineProperties.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// Object.defineProperties -> Get -> [[Get]]
-var get = [];
-var p = new Proxy({foo:{}, bar:{}}, { get: function(o, k) { get.push(k); return o[k]; }});
-Object.defineProperties({}, p);
-return get + '' === "foo,bar";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Promise_resolve_functions.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Promise_resolve_functions.js
deleted file mode 100644
index 09cd400829..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_Promise_resolve_functions.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// Promise resolve functions -> Get -> [[Get]]
-var get = [];
-var p = new Proxy({}, { get: function(o, k) { get.push(k); return o[k]; }});
-new Promise(function(resolve){ resolve(p); });
-return get + '' === "then";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.flags.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.flags.js
index 48668d9f2a..e649b1a3ff 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.flags.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.flags.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // RegExp.prototype.flags -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.test.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.test.js
index 71dd3d5b00..d01ec28fdc 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.test.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.test.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // RegExp.prototype.test -> RegExpExec -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.toString.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.toString.js
index fc244c5bfe..fa971f5ea5 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.toString.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype.toString.js
@@ -1,3 +1,4 @@
+// Reviewed
 // RegExp.prototype.toString -> Get -> [[Get]]
 function test() {
     var get = [];
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.match].js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.match].js
index c2ae3cb4f2..581959ca4f 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.match].js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.match].js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // RegExp.prototype[Symbol.match] -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.replace].js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.replace].js
index 2f40c1dd19..fa59f72086 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.replace].js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.replace].js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // RegExp.prototype[Symbol.replace] -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.search].js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.search].js
index 5f68ae4eb9..c5294a4e11 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.search].js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.search].js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // RegExp.prototype[Symbol.search] -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.split].js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.split].js
index 291509406e..86e05d45bc 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.split].js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp.prototype[Symbol.split].js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // RegExp.prototype[Symbol.split] -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp_constructor.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp_constructor.js
index 366f34d83d..4c1485f0ea 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp_constructor.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_RegExp_constructor.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // RegExp -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.match.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.match.js
index b09fff8324..28724faa42 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.match.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.match.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // String.prototype.match -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.replace.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.replace.js
index 703e24390d..707efdcddd 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.replace.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.replace.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // String.prototype.replace functions -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.search.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.search.js
index 32d4bc10e0..c3a702a36a 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.search.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.search.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // String.prototype.search functions -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.split.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.split.js
index ca65dd720d..ad1536dfdc 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.split.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.prototype.split.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // String.prototype.split functions -> Get -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.raw.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.raw.js
deleted file mode 100644
index 2bfc379e8d..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_String.raw.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-// String.raw -> Get -> [[Get]]
-var get = [];
-var raw = new Proxy({length: 2, 0: '', 1: ''}, { get: function(o, k) { get.push(k); return o[k]; }});
-var p = new Proxy({raw: raw}, { get: function(o, k) { get.push(k); return o[k]; }});
-String.raw(p);
-return get + '' === "raw,length,0,1";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ToPrimitive.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ToPrimitive.js
deleted file mode 100644
index e5bee9d5ea..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ToPrimitive.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// ToPrimitive -> Get -> [[Get]]
-var get = [];
-var p = new Proxy({toString:Function()}, { get: function(o, k) { get.push(k); return o[k]; }});
-p + 3;
-return get[0] === Symbol.toPrimitive && get.slice(1) + '' === "valueOf,toString";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ToPropertyDescriptor.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ToPropertyDescriptor.js
deleted file mode 100644
index e859dc2c3f..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_ToPropertyDescriptor.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-// ToPropertyDescriptor -> Get -> [[Get]]
-var get = [];
-var p = new Proxy({
-    enumerable: true, configurable: true, value: true,
-    writable: true, get: Function(), set: Function()
-  }, { get: function(o, k) { get.push(k); return o[k]; }});
-try {
-  // This will throw, since it will have true for both "get" and "value",
-  // but not before performing a Get on every property.
-  Object.defineProperty({}, "foo", p);
-} catch(e) {
-  return get + '' === "enumerable,configurable,value,writable,get,set";
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_instanceof_operator.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_instanceof_operator.js
index f3bf75aa4b..8696527a15 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_instanceof_operator.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_get_calls_instanceof_operator.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // InstanceofOperator -> GetMethod -> GetV -> [[Get]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_SerializeJSONObject.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_SerializeJSONObject.js
deleted file mode 100644
index 33feb4c266..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_SerializeJSONObject.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// SerializeJSONObject -> EnumerableOwnNames -> [[OwnPropertyKeys]]
-var ownKeysCalled = 0;
-var p = new Proxy({}, { ownKeys: function(o) { ownKeysCalled++; return Object.keys(o); }});
-JSON.stringify({a:p,b:p});
-return ownKeysCalled === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_SetIntegrityLevel.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_SetIntegrityLevel.js
deleted file mode 100644
index ca2ca00915..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_SetIntegrityLevel.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// SetIntegrityLevel -> [[OwnPropertyKeys]]
-var ownKeysCalled = 0;
-var p = new Proxy({}, { ownKeys: function(o) { ownKeysCalled++; return Object.keys(o); }});
-Object.freeze(p);
-return ownKeysCalled === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_TestIntegrityLevel.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_TestIntegrityLevel.js
deleted file mode 100644
index 3184672df2..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_ownKeys_calls_TestIntegrityLevel.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// TestIntegrityLevel -> [[OwnPropertyKeys]]
-var ownKeysCalled = 0;
-var p = new Proxy(Object.preventExtensions({}), { ownKeys: function(o) { ownKeysCalled++; return Object.keys(o); }});
-Object.isFrozen(p);
-return ownKeysCalled === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.from.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.from.js
deleted file mode 100644
index 6084165452..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.from.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// Array.from -> Set -> [[Set]]
-var set = [];
-var p = new Proxy({}, { set: function(o, k, v) { set.push(k); o[k] = v; return true; }});
-Array.from.call(function(){ return p; }, {length:2, 0:1, 1:2});
-return set + '' === "length";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.of.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.of.js
deleted file mode 100644
index e28b45dc2f..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.of.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// Array.from -> Set -> [[Set]]
-var set = [];
-var p = new Proxy({}, { set: function(o, k, v) { set.push(k); o[k] = v; return true; }});
-Array.of.call(function(){ return p; }, 1, 2, 3);
-return set + '' === "length";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.copyWithin.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.copyWithin.js
index 3057229a9e..b05fc0c452 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.copyWithin.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.copyWithin.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.copyWithin -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.fill.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.fill.js
index 129fb1e8f0..e59bfb67e3 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.fill.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.fill.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.fill -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.pop.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.pop.js
index 08b7f4037a..4746ca808e 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.pop.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.pop.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.pop -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.push.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.push.js
index a0b3a1d754..b05f440a44 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.push.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.push.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.push -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.reverse.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.reverse.js
index c40381a7d6..374d072690 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.reverse.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.reverse.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.reverse -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.shift.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.shift.js
index e53fd1d0d1..af540ea9e8 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.shift.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.shift.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.shift -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.splice.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.splice.js
index 363515ec27..43c6c5b6a2 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.splice.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.splice.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.splice -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.unshift.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.unshift.js
index 608bfc1b71..214519e21e 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.unshift.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Array.prototype.unshift.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Array.prototype.unshift -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Object.assign.js b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Object.assign.js
index b2a75a177b..384e18a3c0 100644
--- a/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Object.assign.js
+++ b/implementation-contributed/javascriptcore/es6/Proxy_internal_set_calls_Object.assign.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 // Object.assign -> Set -> [[Set]]
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_isExtensible_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_isExtensible_handler.js
deleted file mode 100644
index 39940a989b..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_isExtensible_handler.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var proxied = {};
-var passed = false;
-Object.isExtensible(
-  new Proxy(proxied, {
-    isExtensible: function (t) {
-      passed = t === proxied; return true;
-    }
-  })
-);
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_ownKeys_duplicates.js b/implementation-contributed/javascriptcore/es6/Proxy_ownKeys_duplicates.js
deleted file mode 100644
index d4f96aba97..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_ownKeys_duplicates.js
+++ /dev/null
@@ -1,32 +0,0 @@
-function test() {
-
-var symbol = Symbol("test");
-var proxy = new Proxy({}, {
-    getOwnPropertyDescriptor(t, n) {
-        // Required to prevent Object.keys() from discarding results
-        return {
-            enumerable: true,
-            configurable: true
-        };
-    },
-    ownKeys: function (t) {
-        return ["A", "A", "0", "0", symbol, symbol];
-    }
-});
-var keys = Object.keys(proxy);
-var names = Object.getOwnPropertyNames(proxy);
-var symbols = Object.getOwnPropertySymbols(proxy);
-
-if (keys.length === 4 && keys[0] === keys[1] && keys[2] === keys[3] &&
-    keys[0] === "A" && keys[2] === "0" &&
-    names.length === 4 && names[0] === names[1] && names[2] === names[3] &&
-    names[0] === "A" && names[2] === "0" &&
-    symbols.length === 2 && symbols[0] === symbols[1] && symbols[0] === symbol)
-    return true;
-return false;
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_ownKeys_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_ownKeys_handler.js
deleted file mode 100644
index e1f516cfd5..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_ownKeys_handler.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var proxied = {};
-var passed = false;
-Object.keys(
-  new Proxy(proxied, {
-    ownKeys: function (t) {
-      passed = t === proxied; return [];
-    }
-  })
-);
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_preventExtensions_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_preventExtensions_handler.js
deleted file mode 100644
index 3dc101bd6b..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_preventExtensions_handler.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-var proxied = {};
-var passed = false;
-Object.preventExtensions(
-  new Proxy(proxied, {
-    preventExtensions: function (t) {
-      passed = t === proxied;
-      return Object.preventExtensions(proxied);
-    }
-  })
-);
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_setPrototypeOf_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_setPrototypeOf_handler.js
deleted file mode 100644
index 30d60b31b2..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_setPrototypeOf_handler.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var proxied = {};
-var newProto = {};
-var passed = false;
-Object.setPrototypeOf(
-  new Proxy(proxied, {
-    setPrototypeOf: function (t, p) {
-      passed = t === proxied && p === newProto;
-      return true;
-    }
-  }),
-  newProto
-);
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_set_handler.js b/implementation-contributed/javascriptcore/es6/Proxy_set_handler.js
deleted file mode 100644
index 8f080f3349..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_set_handler.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var proxied = { };
-var passed = false;
-var proxy = new Proxy(proxied, {
-  set: function (t, k, v, r) {
-    passed = t === proxied && k + v === "foobar" && r === proxy;
-  }
-});
-proxy.foo = "bar";
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Proxy_set_handler_instances_of_proxies.js b/implementation-contributed/javascriptcore/es6/Proxy_set_handler_instances_of_proxies.js
deleted file mode 100644
index 69cd8d9700..0000000000
--- a/implementation-contributed/javascriptcore/es6/Proxy_set_handler_instances_of_proxies.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var proxied = { };
-var passed = false;
-var proxy = Object.create(new Proxy(proxied, {
-  set: function (t, k, v, r) {
-    passed = t === proxied && k + v === "foobar" && r === proxy;
-  }
-}));
-proxy.foo = "bar";
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.apply.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.apply.js
deleted file mode 100644
index 4bba00f498..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.apply.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Reflect.apply(Array.prototype.push, [1,2], [3,4,5]) === 5;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct.js
deleted file mode 100644
index aec34e60fd..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return Reflect.construct(function(a, b, c) {
-  this.qux = a + b + c;
-}, ["foo", "bar", "baz"]).qux === "foobarbaz";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct_creates_instance_from_newTarget_argument.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct_creates_instance_from_newTarget_argument.js
deleted file mode 100644
index 246cd0bc93..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct_creates_instance_from_newTarget_argument.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-function F(){}
-return Reflect.construct(function(){}, [], F) instanceof F;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct_sets_new.target_meta_property.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct_sets_new.target_meta_property.js
deleted file mode 100644
index e699003778..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.construct_sets_new.target_meta_property.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-return Reflect.construct(function(a, b, c) {
-  if (new.target === Object) {
-    this.qux = a + b + c;
-  }
-}, ["foo", "bar", "baz"], Object).qux === "foobarbaz";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.defineProperty.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.defineProperty.js
deleted file mode 100644
index c25e37fa96..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.defineProperty.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var obj = {};
-Reflect.defineProperty(obj, "foo", { value: 123 });
-return obj.foo === 123 &&
-  Reflect.defineProperty(Object.freeze({}), "foo", { value: 123 }) === false;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.deleteProperty.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.deleteProperty.js
deleted file mode 100644
index 819bf382d4..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.deleteProperty.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var obj = { bar: 456 };
-Reflect.deleteProperty(obj, "bar");
-return !("bar" in obj);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.enumerate.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.enumerate.js
deleted file mode 100644
index 5e76f9d921..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.enumerate.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var obj = { foo: 1, bar: 2 };
-var iterator = Reflect.enumerate(obj);
-var passed = 1;
-if (typeof Symbol === 'function' && 'iterator' in Symbol) {
-  passed &= Symbol.iterator in iterator;
-}
-var item = iterator.next();
-passed &= item.value === "foo" && item.done === false;
-item = iterator.next();
-passed &= item.value === "bar" && item.done === false;
-item = iterator.next();
-passed &= item.value === undefined && item.done === true;
-return passed === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.get.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.get.js
deleted file mode 100644
index ceba0430e9..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.get.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Reflect.get({ qux: 987 }, "qux") === 987;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.getOwnPropertyDescriptor.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.getOwnPropertyDescriptor.js
deleted file mode 100644
index 4492f66bc0..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.getOwnPropertyDescriptor.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var obj = { baz: 789 };
-var desc = Reflect.getOwnPropertyDescriptor(obj, "baz");
-return desc.value === 789 &&
-  desc.configurable && desc.writable && desc.enumerable;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.getPrototypeOf.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.getPrototypeOf.js
deleted file mode 100644
index f8c32b90de..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.getPrototypeOf.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Reflect.getPrototypeOf([]) === Array.prototype;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.has.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.has.js
deleted file mode 100644
index 76aa150f82..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.has.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Reflect.has({ qux: 987 }, "qux");
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.isExtensible.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.isExtensible.js
deleted file mode 100644
index 5d62d30188..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.isExtensible.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return Reflect.isExtensible({}) &&
-  !Reflect.isExtensible(Object.preventExtensions({}));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.ownKeys_string_keys.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.ownKeys_string_keys.js
deleted file mode 100644
index c055ebb323..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.ownKeys_string_keys.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var obj = Object.create({ C: true });
-obj.A = true;
-Object.defineProperty(obj, 'B', { value: true, enumerable: false });
-
-return Reflect.ownKeys(obj).sort() + '' === "A,B";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.ownKeys_symbol_keys.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.ownKeys_symbol_keys.js
deleted file mode 100644
index 733d48b419..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.ownKeys_symbol_keys.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var s1 = Symbol(), s2 = Symbol(), s3 = Symbol();
-var proto = {};
-proto[s1] = true;
-var obj = Object.create(proto);
-obj[s2] = true;
-Object.defineProperty(obj, s3, { value: true, enumerable: false });
-
-var keys = Reflect.ownKeys(obj);
-return keys.indexOf(s2) >-1 && keys.indexOf(s3) >-1 && keys.length === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.preventExtensions.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.preventExtensions.js
deleted file mode 100644
index ce24877480..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.preventExtensions.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var obj = {};
-Reflect.preventExtensions(obj);
-return !Object.isExtensible(obj);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.set.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.set.js
deleted file mode 100644
index 251b1bd174..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.set.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var obj = {};
-Reflect.set(obj, "quux", 654);
-return obj.quux === 654;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.setPrototypeOf.js b/implementation-contributed/javascriptcore/es6/Reflect_Reflect.setPrototypeOf.js
deleted file mode 100644
index 1adbdcf788..0000000000
--- a/implementation-contributed/javascriptcore/es6/Reflect_Reflect.setPrototypeOf.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var obj = {};
-Reflect.setPrototypeOf(obj, Array.prototype);
-return obj instanceof Array;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp.prototype.compile.js b/implementation-contributed/javascriptcore/es6/RegExp.prototype.compile.js
deleted file mode 100644
index 756f4c299c..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp.prototype.compile.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof RegExp.prototype.compile === 'function';
-  
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype.flags.js b/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype.flags.js
deleted file mode 100644
index dc227c85ed..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype.flags.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return /./igm.flags === "gim" && /./.flags === "";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.match].js b/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.match].js
deleted file mode 100644
index 034ef55db2..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.match].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof RegExp.prototype[Symbol.match] === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.replace].js b/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.replace].js
deleted file mode 100644
index 118e8a6da7..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.replace].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof RegExp.prototype[Symbol.replace] === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.search].js b/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.search].js
deleted file mode 100644
index b34ecbd351..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.search].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof RegExp.prototype[Symbol.search] === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.split].js b/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.split].js
deleted file mode 100644
index a4e295eeed..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp.prototype[Symbol.split].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof RegExp.prototype[Symbol.split] === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp[Symbol.species].js b/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp[Symbol.species].js
deleted file mode 100644
index 492fbf3c14..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp.prototype_properties_RegExp[Symbol.species].js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var prop = Object.getOwnPropertyDescriptor(RegExp, Symbol.species);
-return 'get' in prop && RegExp[Symbol.species] === RegExp;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_RegExp.prototype.exec.js b/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_RegExp.prototype.exec.js
deleted file mode 100644
index f996573fa9..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_RegExp.prototype.exec.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class R extends RegExp {}
-var r = new R("baz","g");
-return r.exec("foobarbaz")[0] === "baz" && r.lastIndex === 9;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_RegExp.prototype.test.js b/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_RegExp.prototype.test.js
deleted file mode 100644
index 08a736a14f..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_RegExp.prototype.test.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class R extends RegExp {}
-var r = new R("baz");
-return r.test("foobarbaz");
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_basic_functionality.js b/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_basic_functionality.js
deleted file mode 100644
index db4fd87f9a..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_basic_functionality.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class R extends RegExp {}
-var r = new R("baz","g");
-return r.global && r.source === "baz";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_correct_prototype_chain.js b/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_correct_prototype_chain.js
deleted file mode 100644
index b8694148b3..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_is_subclassable_correct_prototype_chain.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-class R extends RegExp {}
-var r = new R("baz","g");
-return r instanceof R && r instanceof RegExp && Object.getPrototypeOf(R) === RegExp;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_hyphens_in_character_sets.js b/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_hyphens_in_character_sets.js
deleted file mode 100644
index 0150d81448..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_hyphens_in_character_sets.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return /[\w-_]/.exec("-")[0] === "-";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_incomplete_patterns_and_quantifiers.js b/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_incomplete_patterns_and_quantifiers.js
deleted file mode 100644
index cedc4f286d..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_incomplete_patterns_and_quantifiers.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return /x{1/.exec("x{1")[0] === "x{1"
-  && /x]1/.exec("x]1")[0] === "x]1";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_Unicode_escapes.js b/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_Unicode_escapes.js
deleted file mode 100644
index 930279660c..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_Unicode_escapes.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return /\u1/.exec("u1")[0] === "u1"
-  && /[\u1]/.exec("u")[0] === "u";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_backreferences_become_octal_escapes.js b/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_backreferences_become_octal_escapes.js
deleted file mode 100644
index a7e85e8e1f..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_backreferences_become_octal_escapes.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return /\41/.exec("!")[0] === "!"
-  && /[\41]/.exec("!")[0] === "!";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_character_escapes.js b/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_character_escapes.js
deleted file mode 100644
index 59df50a4d8..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_character_escapes.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return /\z/.exec("\\z")[0] === "z"
-  && /[\z]/.exec("[\\z]")[0] === "z";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_control-character_escapes.js b/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_control-character_escapes.js
deleted file mode 100644
index 932ae72f1e..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_control-character_escapes.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return /\c2/.exec("\\c2")[0] === "\\c2";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_hexadecimal_escapes.js b/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_hexadecimal_escapes.js
deleted file mode 100644
index eb98c7d16d..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_invalid_hexadecimal_escapes.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return /\x1/.exec("x1")[0] === "x1"
-  && /[\x1]/.exec("x")[0] === "x";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_octal_escape_sequences.js b/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_octal_escape_sequences.js
deleted file mode 100644
index 9a69a7ed0d..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_syntax_extensions_octal_escape_sequences.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return /\041/.exec("!")[0] === "!"
-  && /[\041]/.exec("!")[0] === "!";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_u_flag.js b/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_u_flag.js
deleted file mode 100644
index 089393403e..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_u_flag.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return "𠮷".match(/^.$/u)[0].length === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_u_flag_Unicode_code_point_escapes.js b/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_u_flag_Unicode_code_point_escapes.js
deleted file mode 100644
index 1437e971fa..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_u_flag_Unicode_code_point_escapes.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return "𝌆".match(/\u{1d306}/u)[0].length === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_y_flag.js b/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_y_flag.js
deleted file mode 100644
index c1845978a5..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_y_flag.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var re = new RegExp('\\w', 'y');
-re.exec('xy');
-return (re.exec('xy')[0] === 'y');
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_y_flag_lastIndex.js b/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_y_flag_lastIndex.js
deleted file mode 100644
index 02664fbe82..0000000000
--- a/implementation-contributed/javascriptcore/es6/RegExp_y_and_u_flags_y_flag_lastIndex.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var re = new RegExp('yy', 'y');
-re.lastIndex = 3;
-var result = re.exec('xxxyyxx')[0];
-return result === 'yy' && re.lastIndex === 5;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_-0_key_converts_to_+0.js b/implementation-contributed/javascriptcore/es6/Set_-0_key_converts_to_+0.js
index 318c4a3d12..a59fa4ca1f 100644
--- a/implementation-contributed/javascriptcore/es6/Set_-0_key_converts_to_+0.js
+++ b/implementation-contributed/javascriptcore/es6/Set_-0_key_converts_to_+0.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 var set = new Set();
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.add_returns_this.js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype.add_returns_this.js
deleted file mode 100644
index aa74693854..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.add_returns_this.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var set = new Set();
-return set.add(0) === set;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.clear.js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype.clear.js
deleted file mode 100644
index 1d6c82c6a6..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.clear.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Set.prototype.clear === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.delete.js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype.delete.js
deleted file mode 100644
index 555831b92e..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.delete.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Set.prototype.delete === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.entries.js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype.entries.js
deleted file mode 100644
index 29890a93ba..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.entries.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Set.prototype.entries === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.forEach.js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype.forEach.js
deleted file mode 100644
index e4848023c6..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.forEach.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Set.prototype.forEach === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.keys.js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype.keys.js
deleted file mode 100644
index 322e738fcc..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.keys.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Set.prototype.keys === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.size.js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype.size.js
deleted file mode 100644
index 8b069194b7..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.size.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var obj = {};
-var set = new Set();
-
-set.add(123);
-set.add(123);
-set.add(456);
-
-return set.size === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.values.js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype.values.js
deleted file mode 100644
index ef98c639f0..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype.values.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Set.prototype.values === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set.prototype[Symbol.iterator].js b/implementation-contributed/javascriptcore/es6/Set_Set.prototype[Symbol.iterator].js
deleted file mode 100644
index 575a2e6d99..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set.prototype[Symbol.iterator].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Set.prototype[Symbol.iterator] === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set[Symbol.species].js b/implementation-contributed/javascriptcore/es6/Set_Set[Symbol.species].js
deleted file mode 100644
index dfb7414bf1..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set[Symbol.species].js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var prop = Object.getOwnPropertyDescriptor(Set, Symbol.species);
-return 'get' in prop && Set[Symbol.species] === Set;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_Set_iterator_prototype_chain.js b/implementation-contributed/javascriptcore/es6/Set_Set_iterator_prototype_chain.js
deleted file mode 100644
index 3a067883d9..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_Set_iterator_prototype_chain.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-// Iterator instance
-var iterator = new Set()[Symbol.iterator]();
-// %SetIteratorPrototype%
-var proto1 = Object.getPrototypeOf(iterator);
-// %IteratorPrototype%
-var proto2 = Object.getPrototypeOf(proto1);
-
-return proto2.hasOwnProperty(Symbol.iterator) &&
-  !proto1    .hasOwnProperty(Symbol.iterator) &&
-  !iterator  .hasOwnProperty(Symbol.iterator) &&
-  iterator[Symbol.iterator]() === iterator;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_basic_functionality.js b/implementation-contributed/javascriptcore/es6/Set_basic_functionality.js
deleted file mode 100644
index 90965ff447..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_basic_functionality.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var obj = {};
-var set = new Set();
-
-set.add(123);
-set.add(123);
-
-return set.has(123);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_constructor_accepts_null.js b/implementation-contributed/javascriptcore/es6/Set_constructor_accepts_null.js
deleted file mode 100644
index 96039f4747..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_constructor_accepts_null.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-new Set(null);
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_constructor_arguments.js b/implementation-contributed/javascriptcore/es6/Set_constructor_arguments.js
deleted file mode 100644
index b7409041a4..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_constructor_arguments.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var obj1 = {};
-var obj2 = {};
-var set = new Set([obj1, obj2]);
-
-return set.has(obj1) && set.has(obj2);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_constructor_invokes_add.js b/implementation-contributed/javascriptcore/es6/Set_constructor_invokes_add.js
deleted file mode 100644
index 21f2676a8f..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_constructor_invokes_add.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-var passed = false;
-var _add = Set.prototype.add;
-
-Set.prototype.add = function(v) {
-  passed = true;
-};
-
-new Set([1]);
-Set.prototype.add = _add;
-
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_constructor_requires_new.js b/implementation-contributed/javascriptcore/es6/Set_constructor_requires_new.js
deleted file mode 100644
index 5ad314bf62..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_constructor_requires_new.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-new Set();
-try {
-  Set();
-  return false;
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Set_iterator_closing.js b/implementation-contributed/javascriptcore/es6/Set_iterator_closing.js
deleted file mode 100644
index 9df3b6ba33..0000000000
--- a/implementation-contributed/javascriptcore/es6/Set_iterator_closing.js
+++ /dev/null
@@ -1,39 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var closed = false;
-var iter = global.__createIterableObject([1, 2, 3], {
-  'return': function(){ closed = true; return {}; }
-});
-var add = Set.prototype.add;
-Set.prototype.add = function(){ throw 0 };
-try {
-  new Set(iter);
-} catch(e){}
-Set.prototype.add = add;
-return closed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_existence.js b/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_existence.js
deleted file mode 100644
index bee210d8ff..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_existence.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var i, names = ["anchor", "big", "bold", "fixed", "fontcolor", "fontsize",
-  "italics", "link", "small", "strike", "sub", "sup"];
-for (i = 0; i < names.length; i++) {
-  if (typeof String.prototype[names[i]] !== 'function') {
-    return false;
-  }
-}
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_quotes_in_arguments_are_escaped.js b/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_quotes_in_arguments_are_escaped.js
deleted file mode 100644
index 802570435f..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_quotes_in_arguments_are_escaped.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var i, names = ["anchor", "fontcolor", "fontsize", "link"];
-for (i = 0; i < names.length; i++) {
-  if (""[names[i]]('"') !== ""[names[i]]('&' + 'quot;')) {
-    return false;
-  }
-}
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_tags_names_are_lowercase.js b/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_tags_names_are_lowercase.js
deleted file mode 100644
index b12d7a8d5d..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_HTML_methods_tags_names_are_lowercase.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var i, names = ["anchor", "big", "bold", "fixed", "fontcolor", "fontsize",
-  "italics", "link", "small", "strike", "sub", "sup"];
-for (i = 0; i < names.length; i++) {
-  if (""[names[i]]().toLowerCase() !== ""[names[i]]()) {
-    return false;
-  }
-}
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.codePointAt.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.codePointAt.js
deleted file mode 100644
index 54ffad6559..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.codePointAt.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof String.prototype.codePointAt === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.endsWith.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.endsWith.js
deleted file mode 100644
index c2cdf3fda1..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.endsWith.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return typeof String.prototype.endsWith === 'function'
-  && "foobar".endsWith("bar");
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.includes.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.includes.js
deleted file mode 100644
index 227fa7c508..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.includes.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return typeof String.prototype.includes === 'function'
-  && "foobar".includes("oba");
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.normalize.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.normalize.js
deleted file mode 100644
index 09d65016e8..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.normalize.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return typeof String.prototype.normalize === "function"
-  && "c\u0327\u0301".normalize("NFC") === "\u1e09"
-  && "\u1e09".normalize("NFD") === "c\u0327\u0301";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.padEnd.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.padEnd.js
deleted file mode 100644
index 186c68b7f0..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.padEnd.js
+++ /dev/null
@@ -1,119 +0,0 @@
-function shouldBe(expected, actual, msg) {
-    if (msg === void 0)
-        msg = '';
-    else
-        msg = ' for ' + msg;
-    if (actual !== expected)
-        throw new Error('bad value' + msg + ': ' + actual + '. Expected ' + expected);
-}
-
-function shouldThrow(func, errorMessage) {
-    var errorThrown = false;
-    var error = null;
-    try {
-        func();
-    } catch (e) {
-        errorThrown = true;
-        error = e;
-    }
-    if (!errorThrown)
-        throw new Error('not thrown');
-    if (String(error) !== errorMessage)
-        throw new Error(`bad error: ${String(error)}`);
-}
-
-(function TestMeta() {
-    shouldBe(1, String.prototype.padEnd.length);
-    shouldBe("function", typeof String.prototype.padEnd);
-    shouldBe(Object.getPrototypeOf(Function), Object.getPrototypeOf(String.prototype.padEnd));
-    shouldBe("padEnd", String.prototype.padEnd.name);
-
-    var descriptor = Object.getOwnPropertyDescriptor(String.prototype, "padEnd");
-    shouldBe(undefined, descriptor.get);
-    shouldBe(undefined, descriptor.set);
-    shouldBe(true, descriptor.configurable);
-    shouldBe(false, descriptor.enumerable);
-    shouldBe(true, descriptor.writable);
-    shouldBe(String.prototype.padEnd, descriptor.value);
-
-    shouldThrow(() => new Function(`${String.prototype.padEnd}`), "SyntaxError: Unexpected identifier 'code'. Expected either a closing ']' or a ',' following an array element.");
-})();
-
-(function TestRequireObjectCoercible() {
-    var padEnd = String.prototype.padEnd;
-    shouldThrow(() => padEnd.call(null, 4, "test"), "TypeError: String.prototype.padEnd requires that |this| not be null or undefined");
-    shouldThrow(() => padEnd.call(undefined, 4, "test"), "TypeError: String.prototype.padEnd requires that |this| not be null or undefined");
-    shouldBe("123   ", padEnd.call({
-        __proto__: null,
-        valueOf() { return 123; }
-    }, 6, " "));
-
-    var proxy = new Proxy({}, {
-        get(t, name) {
-            if (name === Symbol.toPrimitive || name === "toString") return;
-            if (name === "valueOf") return () => 6.7;
-            throw new Error("unreachable code");
-        }
-    });
-    shouldBe("6.7   ", padEnd.call(proxy, 6, " "));
-
-    proxy = new Proxy({}, {
-        get(t, name) {
-            if (name === Symbol.toPrimitive || name === "valueOf") return;
-            if (name === "toString") return () => 6.7;
-            throw new Error("unreachable code");
-        }
-    });
-    shouldBe("6.7   ", padEnd.call(proxy, 6, " "));
-})();
-
-(function TestToLength() {
-    shouldThrow(() => "123".padEnd(Symbol("16")), "TypeError: Cannot convert a symbol to a number");
-    shouldBe("123", "123".padEnd(-1));
-    shouldBe("123", "123".padEnd({ toString() { return -1; } }));
-    shouldBe("123", "123".padEnd(-0));
-    shouldBe("123", "123".padEnd({ toString() { return -0; } }));
-    shouldBe("123", "123".padEnd(+0));
-    shouldBe("123", "123".padEnd({ toString() { return +0; } }));
-    shouldBe("123", "123".padEnd(NaN));
-    shouldBe("123", "123".padEnd({ toString() { return NaN; } }));
-})();
-
-(function TestFillerToString() {
-    shouldBe(".         ", ".".padEnd(10));
-    shouldBe(".         ", ".".padEnd(10, undefined));
-    shouldBe(".XXXXXXXXX", ".".padEnd(10, { toString() { return "X"; } }));
-    shouldBe(".111111111", ".".padEnd(10, { toString: undefined, valueOf() { return 1; } }));
-    shouldBe(".nullnulln", ".".padEnd(10, null));
-})();
-
-(function TestFillerEmptyString() {
-    shouldBe(".", ".".padEnd(10000, ""));
-    shouldBe(".", ".".padEnd(10000, { toString() { return ""; } }));
-    shouldBe(".", ".".padEnd(10000, { toString: undefined, valueOf() { return ""; } }));
-})();
-
-(function TestSingleCharacterFiller() {
-    shouldBe(".!!!!!!!!!", ".".padEnd(10, "!"));
-    shouldBe(".!!!!!!!!!", ".".padEnd(10, { toString() { return "!"; } }));
-    shouldBe(".!!!!!!!!!", ".".padEnd(10, "" + "!" + ""));
-    shouldBe(".!!!!!!!!!", ".".padEnd(10, { toString() { return "" + "!" + ""; } }));
-})();
-
-(function TestMemoryLimits() {
-    shouldThrow(() => ".".padEnd(0x80000000, "o"), "Error: Out of memory");
-    shouldThrow(() => ".".padEnd({ valueOf() { return 0x80000000; } }, "o"), "Error: Out of memory");
-    shouldThrow(() => ".".padEnd("0x80000000", "o"), "Error: Out of memory");
-})();
-
-(function TestFillerRepetition() {
-    for (var i = 2000; i > 0; --i) {
-        var expected = "123" + "xoxo".repeat(i / 4).slice(0, i - 3);
-        var actual = "123".padEnd(i, "xoxo");
-        shouldBe(expected, actual);
-        shouldBe(i > "123".length ? i : 3, actual.length);
-        actual = "123".padEnd(i, "xo" + "" + "xo");
-        shouldBe(expected, actual);
-        shouldBe(i > "123".length ? i : 3, actual.length);
-    }
-})();
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.padStart.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.padStart.js
deleted file mode 100644
index e0da7bfd1c..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.padStart.js
+++ /dev/null
@@ -1,119 +0,0 @@
-function shouldBe(expected, actual, msg) {
-    if (msg === void 0)
-        msg = '';
-    else
-        msg = ' for ' + msg;
-    if (actual !== expected)
-        throw new Error('bad value' + msg + ': ' + actual + '. Expected ' + expected);
-}
-
-function shouldThrow(func, errorMessage) {
-    var errorThrown = false;
-    var error = null;
-    try {
-        func();
-    } catch (e) {
-        errorThrown = true;
-        error = e;
-    }
-    if (!errorThrown)
-        throw new Error('not thrown');
-    if (String(error) !== errorMessage)
-        throw new Error(`bad error: ${String(error)}`);
-}
-
-(function TestMeta() {
-    shouldBe(1, String.prototype.padEnd.length);
-    shouldBe("function", typeof String.prototype.padStart);
-    shouldBe(Object.getPrototypeOf(Function), Object.getPrototypeOf(String.prototype.padStart));
-    shouldBe("padStart", String.prototype.padStart.name);
-
-    var descriptor = Object.getOwnPropertyDescriptor(String.prototype, "padStart");
-    shouldBe(undefined, descriptor.get);
-    shouldBe(undefined, descriptor.set);
-    shouldBe(true, descriptor.configurable);
-    shouldBe(false, descriptor.enumerable);
-    shouldBe(true, descriptor.writable);
-    shouldBe(String.prototype.padStart, descriptor.value);
-
-    shouldThrow(() => new Function(`${String.prototype.padStart}`), "SyntaxError: Unexpected identifier 'code'. Expected either a closing ']' or a ',' following an array element.");
-})();
-
-(function TestRequireObjectCoercible() {
-    var padStart = String.prototype.padStart;
-    shouldThrow(() => padStart.call(null, 4, "test"), "TypeError: String.prototype.padStart requires that |this| not be null or undefined");
-    shouldThrow(() => padStart.call(undefined, 4, "test"), "TypeError: String.prototype.padStart requires that |this| not be null or undefined");
-    shouldBe("   123", padStart.call({
-        __proto__: null,
-        valueOf() { return 123; }
-    }, 6, " "));
-
-    var proxy = new Proxy({}, {
-        get(t, name) {
-            if (name === Symbol.toPrimitive || name === "toString") return;
-            if (name === "valueOf") return () => 6.7;
-            throw new Error("unreachable code");
-        }
-    });
-    shouldBe("   6.7", padStart.call(proxy, 6, " "));
-
-    proxy = new Proxy({}, {
-        get(t, name) {
-            if (name === Symbol.toPrimitive || name === "valueOf") return;
-            if (name === "toString") return () => 6.7;
-            throw new Error("unreachable code");
-        }
-    });
-    shouldBe("   6.7", padStart.call(proxy, 6, " "));
-})();
-
-(function TestToLength() {
-    shouldThrow(() => "123".padStart(Symbol("16")), "TypeError: Cannot convert a symbol to a number");
-    shouldBe("123", "123".padStart(-1));
-    shouldBe("123", "123".padStart({ toString() { return -1; } }));
-    shouldBe("123", "123".padStart(-0));
-    shouldBe("123", "123".padStart({ toString() { return -0; } }));
-    shouldBe("123", "123".padStart(+0));
-    shouldBe("123", "123".padStart({ toString() { return +0; } }));
-    shouldBe("123", "123".padStart(NaN));
-    shouldBe("123", "123".padStart({ toString() { return NaN; } }));
-})();
-
-(function TestFillerToString() {
-    shouldBe("         .", ".".padStart(10));
-    shouldBe("         .", ".".padStart(10, undefined));
-    shouldBe("XXXXXXXXX.", ".".padStart(10, { toString() { return "X"; } }));
-    shouldBe("111111111.", ".".padStart(10, { toString: undefined, valueOf() { return 1; } }));
-    shouldBe("nullnulln.", ".".padStart(10, null));
-})();
-
-(function TestFillerEmptyString() {
-    shouldBe(".", ".".padStart(10000, ""));
-    shouldBe(".", ".".padStart(10000, { toString() { return ""; } }));
-    shouldBe(".", ".".padStart(10000, { toString: undefined, valueOf() { return ""; } }));
-})();
-
-(function TestSingleCharacterFiller() {
-    shouldBe("!!!!!!!!!.", ".".padStart(10, "!"));
-    shouldBe("!!!!!!!!!.", ".".padStart(10, { toString() { return "!"; } }));
-    shouldBe("!!!!!!!!!.", ".".padStart(10, "" + "!" + ""));
-    shouldBe("!!!!!!!!!.", ".".padStart(10, { toString() { return "" + "!" + ""; } }));
-})();
-
-(function TestMemoryLimits() {
-    shouldThrow(() => ".".padStart(0x80000000, "o"), "Error: Out of memory");
-    shouldThrow(() => ".".padStart({ valueOf() { return 0x80000000; } }, "o"), "Error: Out of memory");
-    shouldThrow(() => ".".padStart("0x80000000", "o"), "Error: Out of memory");
-})();
-
-(function TestFillerRepetition() {
-    for (var i = 2000; i > 0; --i) {
-        var expected = "xoxo".repeat(i / 4).slice(0, i - 3) + "123";
-        var actual = "123".padStart(i, "xoxo");
-        shouldBe(expected, actual);
-        shouldBe(i > "123".length ? i : 3, actual.length);
-        actual = "123".padStart(i, "xo" + "" + "xo");
-        shouldBe(expected, actual);
-        shouldBe(i > "123".length ? i : 3, actual.length);
-    }
-})();
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.repeat.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.repeat.js
deleted file mode 100644
index 20e2a01b09..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.repeat.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return typeof String.prototype.repeat === 'function'
-  && "foo".repeat(3) === "foofoofoo";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.startsWith.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.startsWith.js
deleted file mode 100644
index d36a9b4cf1..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype.startsWith.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return typeof String.prototype.startsWith === 'function'
-  && "foobar".startsWith("foo");
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype[Symbol.iterator].js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype[Symbol.iterator].js
deleted file mode 100644
index 133b11a668..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String.prototype[Symbol.iterator].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof String.prototype[Symbol.iterator] === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String_iterator_prototype_chain.js b/implementation-contributed/javascriptcore/es6/String.prototype_methods_String_iterator_prototype_chain.js
deleted file mode 100644
index e3d52bca95..0000000000
--- a/implementation-contributed/javascriptcore/es6/String.prototype_methods_String_iterator_prototype_chain.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-// Iterator instance
-var iterator = ''[Symbol.iterator]();
-// %StringIteratorPrototype%
-var proto1 = Object.getPrototypeOf(iterator);
-// %IteratorPrototype%
-var proto2 = Object.getPrototypeOf(proto1);
-
-return proto2.hasOwnProperty(Symbol.iterator) &&
-  !proto1    .hasOwnProperty(Symbol.iterator) &&
-  !iterator  .hasOwnProperty(Symbol.iterator) &&
-  iterator[Symbol.iterator]() === iterator;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String_static_methods_String.fromCodePoint.js b/implementation-contributed/javascriptcore/es6/String_static_methods_String.fromCodePoint.js
deleted file mode 100644
index bbd36007ec..0000000000
--- a/implementation-contributed/javascriptcore/es6/String_static_methods_String.fromCodePoint.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof String.fromCodePoint === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/String_static_methods_String.raw.js b/implementation-contributed/javascriptcore/es6/String_static_methods_String.raw.js
deleted file mode 100644
index f6960c3fc2..0000000000
--- a/implementation-contributed/javascriptcore/es6/String_static_methods_String.raw.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof String.raw === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_JSON.stringify_ignores_symbols.js b/implementation-contributed/javascriptcore/es6/Symbol_JSON.stringify_ignores_symbols.js
index 4df25e3d03..25ba75371a 100644
--- a/implementation-contributed/javascriptcore/es6/Symbol_JSON.stringify_ignores_symbols.js
+++ b/implementation-contributed/javascriptcore/es6/Symbol_JSON.stringify_ignores_symbols.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 var object = {foo: Symbol()};
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_Object.defineProperty_support.js b/implementation-contributed/javascriptcore/es6/Symbol_Object.defineProperty_support.js
deleted file mode 100644
index aa981fc4a9..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_Object.defineProperty_support.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var object = {};
-var symbol = Symbol();
-var value = {};
-
-if (Object.defineProperty) {
-  Object.defineProperty(object, symbol, { value: value });
-  return object[symbol] === value;
-}
-
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_Objectsymbol.js b/implementation-contributed/javascriptcore/es6/Symbol_Objectsymbol.js
deleted file mode 100644
index b8d43f8aba..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_Objectsymbol.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var symbol = Symbol();
-var symbolObject = Object(symbol);
-
-return typeof symbolObject === "object" &&
-  symbolObject == symbol &&
-  symbolObject !== symbol &&
-  symbolObject.valueOf() === symbol;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_basic_functionality.js b/implementation-contributed/javascriptcore/es6/Symbol_basic_functionality.js
deleted file mode 100644
index 40e8d40105..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_basic_functionality.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var object = {};
-var symbol = Symbol();
-var value = {};
-object[symbol] = value;
-return object[symbol] === value;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_can_convert_with_String.js b/implementation-contributed/javascriptcore/es6/Symbol_can_convert_with_String.js
deleted file mode 100644
index 2c757bbff0..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_can_convert_with_String.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return String(Symbol("foo")) === "Symbol(foo)";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_cannot_coerce_to_string_or_number.js b/implementation-contributed/javascriptcore/es6/Symbol_cannot_coerce_to_string_or_number.js
deleted file mode 100644
index e6e61cbf91..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_cannot_coerce_to_string_or_number.js
+++ /dev/null
@@ -1,22 +0,0 @@
-function test() {
-
-var symbol = Symbol();
-
-try {
-  symbol + "";
-  return false;
-}
-catch(e) {}
-
-try {
-  symbol + 0;
-  return false;
-} catch(e) {}
-
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_global_symbol_registry.js b/implementation-contributed/javascriptcore/es6/Symbol_global_symbol_registry.js
deleted file mode 100644
index 833362adb6..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_global_symbol_registry.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var symbol = Symbol.for('foo');
-return Symbol.for('foo') === symbol &&
-   Symbol.keyFor(symbol) === 'foo';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_new_Symbol_throws.js b/implementation-contributed/javascriptcore/es6/Symbol_new_Symbol_throws.js
deleted file mode 100644
index c795837257..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_new_Symbol_throws.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var symbol = Symbol();
-try {
-  new Symbol();
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_symbol_keys_are_hidden_to_pre-ES6_code.js b/implementation-contributed/javascriptcore/es6/Symbol_symbol_keys_are_hidden_to_pre-ES6_code.js
deleted file mode 100644
index 282c88c916..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_symbol_keys_are_hidden_to_pre-ES6_code.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var object = {};
-var symbol = Symbol();
-object[symbol] = 1;
-
-for (var x in object){}
-var passed = !x;
-
-if (Object.keys && Object.getOwnPropertyNames) {
-  passed &= Object.keys(object).length === 0
-    && Object.getOwnPropertyNames(object).length === 0;
-}
-
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Symbol_typeof_support.js b/implementation-contributed/javascriptcore/es6/Symbol_typeof_support.js
deleted file mode 100644
index 4a022b5dd1..0000000000
--- a/implementation-contributed/javascriptcore/es6/Symbol_typeof_support.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof Symbol() === "symbol";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/Unicode_code_point_escapes_in_identifiers.js b/implementation-contributed/javascriptcore/es6/Unicode_code_point_escapes_in_identifiers.js
index ca88fbfd6b..e8042ef2e5 100644
--- a/implementation-contributed/javascriptcore/es6/Unicode_code_point_escapes_in_identifiers.js
+++ b/implementation-contributed/javascriptcore/es6/Unicode_code_point_escapes_in_identifiers.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 var \u{102C0} = { \u{102C0} : 2 };
diff --git a/implementation-contributed/javascriptcore/es6/Unicode_code_point_escapes_in_strings.js b/implementation-contributed/javascriptcore/es6/Unicode_code_point_escapes_in_strings.js
index 88d5abe3b8..6a6c044d27 100644
--- a/implementation-contributed/javascriptcore/es6/Unicode_code_point_escapes_in_strings.js
+++ b/implementation-contributed/javascriptcore/es6/Unicode_code_point_escapes_in_strings.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 return '\u{1d306}' == '\ud834\udf06';
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_WeakMap.prototype.delete.js b/implementation-contributed/javascriptcore/es6/WeakMap_WeakMap.prototype.delete.js
deleted file mode 100644
index aa46f3d742..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_WeakMap.prototype.delete.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof WeakMap.prototype.delete === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_WeakMap.prototype.set_returns_this.js b/implementation-contributed/javascriptcore/es6/WeakMap_WeakMap.prototype.set_returns_this.js
deleted file mode 100644
index c53c06458c..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_WeakMap.prototype.set_returns_this.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var weakmap = new WeakMap();
-var key = {};
-return weakmap.set(key, 0) === weakmap;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_basic_functionality.js b/implementation-contributed/javascriptcore/es6/WeakMap_basic_functionality.js
deleted file mode 100644
index 0ac6e5effa..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_basic_functionality.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var key = {};
-var weakmap = new WeakMap();
-
-weakmap.set(key, 123);
-
-return weakmap.has(key) && weakmap.get(key) === 123;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_constructor_accepts_null.js b/implementation-contributed/javascriptcore/es6/WeakMap_constructor_accepts_null.js
deleted file mode 100644
index 84cda9c356..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_constructor_accepts_null.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-new WeakMap(null);
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_constructor_arguments.js b/implementation-contributed/javascriptcore/es6/WeakMap_constructor_arguments.js
deleted file mode 100644
index 93816dc367..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_constructor_arguments.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var key1 = {};
-var key2 = {};
-var weakmap = new WeakMap([[key1, 123], [key2, 456]]);
-
-return weakmap.has(key1) && weakmap.get(key1) === 123 &&
-       weakmap.has(key2) && weakmap.get(key2) === 456;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_constructor_invokes_set.js b/implementation-contributed/javascriptcore/es6/WeakMap_constructor_invokes_set.js
deleted file mode 100644
index 4e3aa357df..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_constructor_invokes_set.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-var passed = false;
-var _set = WeakMap.prototype.set;
-
-WeakMap.prototype.set = function(k, v) {
-  passed = true;
-};
-
-new WeakMap([ [{ }, 42] ]);
-WeakMap.prototype.set = _set;
-
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_constructor_requires_new.js b/implementation-contributed/javascriptcore/es6/WeakMap_constructor_requires_new.js
deleted file mode 100644
index bdac886616..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_constructor_requires_new.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-new WeakMap();
-try {
-  WeakMap();
-  return false;
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_frozen_objects_as_keys.js b/implementation-contributed/javascriptcore/es6/WeakMap_frozen_objects_as_keys.js
deleted file mode 100644
index cec27d0761..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_frozen_objects_as_keys.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var f = Object.freeze({});
-var m = new WeakMap;
-m.set(f, 42);
-return m.get(f) === 42;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_iterator_closing.js b/implementation-contributed/javascriptcore/es6/WeakMap_iterator_closing.js
deleted file mode 100644
index cd7120e614..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_iterator_closing.js
+++ /dev/null
@@ -1,36 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var closed = false;
-var iter = global.__createIterableObject([1, 2, 3], {
-  'return': function(){ closed = true; return {}; }
-});
-try {
-  new WeakMap(iter);
-} catch(e){}
-return closed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakMap_no_WeakMap.prototype.clear_method.js b/implementation-contributed/javascriptcore/es6/WeakMap_no_WeakMap.prototype.clear_method.js
deleted file mode 100644
index a17576f213..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakMap_no_WeakMap.prototype.clear_method.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-if (!("clear" in WeakMap.prototype)) {
-  return true;
-}
-var m = new WeakMap();
-var key = {};
-m.set(key, 2);
-m.clear();
-return m.has(key);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_WeakSet.prototype.add_returns_this.js b/implementation-contributed/javascriptcore/es6/WeakSet_WeakSet.prototype.add_returns_this.js
deleted file mode 100644
index 3553ac599b..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakSet_WeakSet.prototype.add_returns_this.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var weakset = new WeakSet();
-var obj = {};
-return weakset.add(obj) === weakset;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_WeakSet.prototype.delete.js b/implementation-contributed/javascriptcore/es6/WeakSet_WeakSet.prototype.delete.js
deleted file mode 100644
index 0a396561b4..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakSet_WeakSet.prototype.delete.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof WeakSet.prototype.delete === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_basic_functionality.js b/implementation-contributed/javascriptcore/es6/WeakSet_basic_functionality.js
deleted file mode 100644
index d1831b36fc..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakSet_basic_functionality.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var obj1 = {};
-var weakset = new WeakSet();
-
-weakset.add(obj1);
-weakset.add(obj1);
-
-return weakset.has(obj1);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_constructor_accepts_null.js b/implementation-contributed/javascriptcore/es6/WeakSet_constructor_accepts_null.js
deleted file mode 100644
index ba528f88d1..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakSet_constructor_accepts_null.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-new WeakSet(null);
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_constructor_arguments.js b/implementation-contributed/javascriptcore/es6/WeakSet_constructor_arguments.js
deleted file mode 100644
index d6b6b33c7d..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakSet_constructor_arguments.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var obj1 = {}, obj2 = {};
-var weakset = new WeakSet([obj1, obj2]);
-
-return weakset.has(obj1) && weakset.has(obj2);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_constructor_invokes_add.js b/implementation-contributed/javascriptcore/es6/WeakSet_constructor_invokes_add.js
deleted file mode 100644
index d4d650aa00..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakSet_constructor_invokes_add.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-var passed = false;
-var _add = WeakSet.prototype.add;
-
-WeakSet.prototype.add = function(v) {
-  passed = true;
-};
-
-new WeakSet([ { } ]);
-WeakSet.prototype.add = _add;
-
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_constructor_requires_new.js b/implementation-contributed/javascriptcore/es6/WeakSet_constructor_requires_new.js
deleted file mode 100644
index ca66faeffb..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakSet_constructor_requires_new.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-new WeakSet();
-try {
-  WeakSet();
-  return false;
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_iterator_closing.js b/implementation-contributed/javascriptcore/es6/WeakSet_iterator_closing.js
index 3aa2922f23..be49fdb6a2 100644
--- a/implementation-contributed/javascriptcore/es6/WeakSet_iterator_closing.js
+++ b/implementation-contributed/javascriptcore/es6/WeakSet_iterator_closing.js
@@ -1,3 +1,4 @@
+// Reviewed
 var global = this;
 
 function __createIterableObject(arr, methods) {
diff --git a/implementation-contributed/javascriptcore/es6/WeakSet_no_WeakSet.prototype.clear_method.js b/implementation-contributed/javascriptcore/es6/WeakSet_no_WeakSet.prototype.clear_method.js
deleted file mode 100644
index fa5f13e155..0000000000
--- a/implementation-contributed/javascriptcore/es6/WeakSet_no_WeakSet.prototype.clear_method.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-if (!("clear" in WeakSet.prototype)) {
-  return true;
-}
-var s = new WeakSet();
-var key = {};
-s.add(key);
-s.clear();
-return s.has(key);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_basic_support.js b/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_basic_support.js
deleted file mode 100644
index 3199d705b5..0000000000
--- a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_basic_support.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return { __proto__ : [] } instanceof Array
-  && !({ __proto__ : null } instanceof Object);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_multiple___proto___is_an_error.js b/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_multiple___proto___is_an_error.js
deleted file mode 100644
index 9399bce7fb..0000000000
--- a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_multiple___proto___is_an_error.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-try {
-  eval("({ __proto__ : [], __proto__: {} })");
-}
-catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_computed_property.js b/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_computed_property.js
deleted file mode 100644
index 1d2fd09fac..0000000000
--- a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_computed_property.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-if (!({ __proto__ : [] } instanceof Array)) {
-  return false;
-}
-var a = "__proto__";
-return !({ [a] : [] } instanceof Array);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_shorthand_method.js b/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_shorthand_method.js
deleted file mode 100644
index ffa3598d42..0000000000
--- a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_shorthand_method.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-if (!({ __proto__ : [] } instanceof Array)) {
-  return false;
-}
-return !({ __proto__(){} } instanceof Function);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_shorthand_property.js b/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_shorthand_property.js
deleted file mode 100644
index de5a3391a8..0000000000
--- a/implementation-contributed/javascriptcore/es6/__proto___in_object_literals_not_a_shorthand_property.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-if (!({ __proto__ : [] } instanceof Array)) {
-  return false;
-}
-var __proto__ = [];
-return !({ __proto__ } instanceof Array);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/block-level_function_declaration.js b/implementation-contributed/javascriptcore/es6/block-level_function_declaration.js
deleted file mode 100644
index 3d55198fd0..0000000000
--- a/implementation-contributed/javascriptcore/es6/block-level_function_declaration.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-'use strict';
-function f() { return 1; }
-{
-  function f() { return 2; }
-}
-return f() === 1;
-  
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_accessor_properties.js b/implementation-contributed/javascriptcore/es6/class_accessor_properties.js
deleted file mode 100644
index 2bc3d07bc3..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_accessor_properties.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var baz = false;
-class C {
-  get foo() { return "foo"; }
-  set bar(x) { baz = x; }
-}
-new C().bar = true;
-return new C().foo === "foo" && baz;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_anonymous_class.js b/implementation-contributed/javascriptcore/es6/class_anonymous_class.js
deleted file mode 100644
index 761b5c6b9e..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_anonymous_class.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof class {} === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_class_expression.js b/implementation-contributed/javascriptcore/es6/class_class_expression.js
deleted file mode 100644
index b9beb39026..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_class_expression.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof class C {} === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_class_name_is_lexically_scoped.js b/implementation-contributed/javascriptcore/es6/class_class_name_is_lexically_scoped.js
deleted file mode 100644
index 8e6702c17b..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_class_name_is_lexically_scoped.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-class C {
-  method() { return typeof C === "function"; }
-}
-var M = C.prototype.method;
-C = undefined;
-return C === undefined && M();
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_class_statement.js b/implementation-contributed/javascriptcore/es6/class_class_statement.js
deleted file mode 100644
index c6ccc8038b..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_class_statement.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-class C {}
-return typeof C === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_computed_accessor_properties.js b/implementation-contributed/javascriptcore/es6/class_computed_accessor_properties.js
deleted file mode 100644
index 8e710474e9..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_computed_accessor_properties.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var garply = "foo", grault = "bar", baz = false;
-class C {
-  get [garply]() { return "foo"; }
-  set [grault](x) { baz = x; }
-}
-new C().bar = true;
-return new C().foo === "foo" && baz;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_computed_names_temporal_dead_zone.js b/implementation-contributed/javascriptcore/es6/class_computed_names_temporal_dead_zone.js
deleted file mode 100644
index 00f99243e9..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_computed_names_temporal_dead_zone.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-try {
-  var B = class C {
-    [C](){}
-  }
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_computed_prototype_methods.js b/implementation-contributed/javascriptcore/es6/class_computed_prototype_methods.js
deleted file mode 100644
index f653145bdc..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_computed_prototype_methods.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var foo = "method";
-class C {
-  [foo]() { return 2; }
-}
-return typeof C.prototype.method === "function"
-  && new C().method() === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_computed_static_accessor_properties.js b/implementation-contributed/javascriptcore/es6/class_computed_static_accessor_properties.js
deleted file mode 100644
index 23bcc8c917..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_computed_static_accessor_properties.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var garply = "foo", grault = "bar", baz = false;
-class C {
-  static get [garply]() { return "foo"; }
-  static set [grault](x) { baz = x; }
-}
-C.bar = true;
-return C.foo === "foo" && baz;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_computed_static_methods.js b/implementation-contributed/javascriptcore/es6/class_computed_static_methods.js
deleted file mode 100644
index f1d14907ea..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_computed_static_methods.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var foo = "method";
-class C {
-  static [foo]() { return 3; }
-}
-return typeof C.method === "function"
-  && C.method() === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_constructor.js b/implementation-contributed/javascriptcore/es6/class_constructor.js
deleted file mode 100644
index 3694b7217d..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_constructor.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-class C {
-  constructor() { this.x = 1; }
-}
-return C.prototype.constructor === C
-  && new C().x === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_constructor_requires_new.js b/implementation-contributed/javascriptcore/es6/class_constructor_requires_new.js
deleted file mode 100644
index b7220722bb..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_constructor_requires_new.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-class C {}
-try {
-  C();
-}
-catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_extends.js b/implementation-contributed/javascriptcore/es6/class_extends.js
deleted file mode 100644
index 2b5ff4e7e6..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_extends.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-class B {}
-class C extends B {}
-return new C() instanceof B
-  && B.isPrototypeOf(C);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_extends_expressions.js b/implementation-contributed/javascriptcore/es6/class_extends_expressions.js
deleted file mode 100644
index 01b0523c1c..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_extends_expressions.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var B;
-class C extends (B = class {}) {}
-return new C() instanceof B
-  && B.isPrototypeOf(C);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_extends_null.js b/implementation-contributed/javascriptcore/es6/class_extends_null.js
deleted file mode 100644
index 20f9d417f5..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_extends_null.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-class C extends null {
-  constructor() { return Object.create(null); }
-}
-return Function.prototype.isPrototypeOf(C)
-  && Object.getPrototypeOf(C.prototype) === null;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_implicit_strict_mode.js b/implementation-contributed/javascriptcore/es6/class_implicit_strict_mode.js
deleted file mode 100644
index 7b3a2dd430..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_implicit_strict_mode.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-class C {
-  static method() { return this === undefined; }
-}
-return (0,C.method)();
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_is_block-scoped.js b/implementation-contributed/javascriptcore/es6/class_is_block-scoped.js
deleted file mode 100644
index 06b401f486..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_is_block-scoped.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-class C {}
-var c1 = C;
-{
-  class C {}
-  var c2 = C;
-}
-return C === c1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_methods_arent_enumerable.js b/implementation-contributed/javascriptcore/es6/class_methods_arent_enumerable.js
deleted file mode 100644
index aa6eed4d90..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_methods_arent_enumerable.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-class C {
-  foo() {}
-  static bar() {}
-}
-return !C.prototype.propertyIsEnumerable("foo") && !C.propertyIsEnumerable("bar");
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_new.target.js b/implementation-contributed/javascriptcore/es6/class_new.target.js
deleted file mode 100644
index 27d1cdc8d0..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_new.target.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var passed = false;
-new function f() {
-  passed = new.target === f;
-}();
-
-class A {
-  constructor() {
-    passed &= new.target === B;
-  }
-}
-class B extends A {}
-new B();
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_prototype_methods.js b/implementation-contributed/javascriptcore/es6/class_prototype_methods.js
deleted file mode 100644
index 9c0d7fd404..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_prototype_methods.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-class C {
-  method() { return 2; }
-}
-return typeof C.prototype.method === "function"
-  && new C().method() === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_static_accessor_properties.js b/implementation-contributed/javascriptcore/es6/class_static_accessor_properties.js
deleted file mode 100644
index 556aacf706..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_static_accessor_properties.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-var baz = false;
-class C {
-  static get foo() { return "foo"; }
-  static set bar(x) { baz = x; }
-}
-C.bar = true;
-return C.foo === "foo" && baz;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_static_methods.js b/implementation-contributed/javascriptcore/es6/class_static_methods.js
deleted file mode 100644
index 7735848ee7..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_static_methods.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-class C {
-  static method() { return 3; }
-}
-return typeof C.method === "function"
-  && C.method() === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/class_string-keyed_methods.js b/implementation-contributed/javascriptcore/es6/class_string-keyed_methods.js
deleted file mode 100644
index 49dec9a908..0000000000
--- a/implementation-contributed/javascriptcore/es6/class_string-keyed_methods.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-class C {
-  "foo bar"() { return 2; }
-}
-return typeof C.prototype["foo bar"] === "function"
-  && new C()["foo bar"]() === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/const_basic_support.js b/implementation-contributed/javascriptcore/es6/const_basic_support.js
deleted file mode 100644
index b04537b9af..0000000000
--- a/implementation-contributed/javascriptcore/es6/const_basic_support.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-const foo = 123;
-return (foo === 123);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/const_basic_support_strict_mode.js b/implementation-contributed/javascriptcore/es6/const_basic_support_strict_mode.js
deleted file mode 100644
index e3ef981e3a..0000000000
--- a/implementation-contributed/javascriptcore/es6/const_basic_support_strict_mode.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-"use strict";
-const foo = 123;
-return (foo === 123);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/const_is_block-scoped.js b/implementation-contributed/javascriptcore/es6/const_is_block-scoped.js
deleted file mode 100644
index 063bf41293..0000000000
--- a/implementation-contributed/javascriptcore/es6/const_is_block-scoped.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-const bar = 123;
-{ const bar = 456; }
-return bar === 123;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/const_is_block-scoped_strict_mode.js b/implementation-contributed/javascriptcore/es6/const_is_block-scoped_strict_mode.js
deleted file mode 100644
index f116c90af3..0000000000
--- a/implementation-contributed/javascriptcore/es6/const_is_block-scoped_strict_mode.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-'use strict';
-const bar = 123;
-{ const bar = 456; }
-return bar === 123;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/const_redefining_a_const_is_an_error.js b/implementation-contributed/javascriptcore/es6/const_redefining_a_const_is_an_error.js
deleted file mode 100644
index 104d210129..0000000000
--- a/implementation-contributed/javascriptcore/es6/const_redefining_a_const_is_an_error.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-const baz = 1;
-try {
-  Function("const foo = 1; foo = 2;")();
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/const_redefining_a_const_strict_mode.js b/implementation-contributed/javascriptcore/es6/const_redefining_a_const_strict_mode.js
deleted file mode 100644
index 3fe25bf1ea..0000000000
--- a/implementation-contributed/javascriptcore/es6/const_redefining_a_const_strict_mode.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-'use strict';
-const baz = 1;
-try {
-  Function("'use strict'; const foo = 1; foo = 2;")();
-} catch(e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/default_function_parameters_arguments_object_interaction.js b/implementation-contributed/javascriptcore/es6/default_function_parameters_arguments_object_interaction.js
deleted file mode 100644
index c204b7d5fa..0000000000
--- a/implementation-contributed/javascriptcore/es6/default_function_parameters_arguments_object_interaction.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-return (function (a = "baz", b = "qux", c = "quux") {
-  a = "corge";
-  // The arguments object is not mapped to the
-  // parameters, even outside of strict mode.
-  return arguments.length === 2
-    && arguments[0] === "foo"
-    && arguments[1] === "bar";
-}("foo", "bar"));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/default_function_parameters_basic_functionality.js b/implementation-contributed/javascriptcore/es6/default_function_parameters_basic_functionality.js
deleted file mode 100644
index 68f0bf7fa1..0000000000
--- a/implementation-contributed/javascriptcore/es6/default_function_parameters_basic_functionality.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return (function (a = 1, b = 2) { return a === 3 && b === 2; }(3));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/default_function_parameters_defaults_can_refer_to_previous_params.js b/implementation-contributed/javascriptcore/es6/default_function_parameters_defaults_can_refer_to_previous_params.js
deleted file mode 100644
index a98543cba7..0000000000
--- a/implementation-contributed/javascriptcore/es6/default_function_parameters_defaults_can_refer_to_previous_params.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return (function (a, b = a) { return b === 5; }(5));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/default_function_parameters_explicit_undefined_defers_to_the_default.js b/implementation-contributed/javascriptcore/es6/default_function_parameters_explicit_undefined_defers_to_the_default.js
deleted file mode 100644
index 1f8ad5c18c..0000000000
--- a/implementation-contributed/javascriptcore/es6/default_function_parameters_explicit_undefined_defers_to_the_default.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return (function (a = 1, b = 2) { return a === 1 && b === 3; }(undefined, 3));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/default_function_parameters_new_Function_support.js b/implementation-contributed/javascriptcore/es6/default_function_parameters_new_Function_support.js
deleted file mode 100644
index 14d47cbf6d..0000000000
--- a/implementation-contributed/javascriptcore/es6/default_function_parameters_new_Function_support.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return new Function("a = 1", "b = 2",
-  "return a === 3 && b === 2;"
-)(3);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/default_function_parameters_separate_scope.js b/implementation-contributed/javascriptcore/es6/default_function_parameters_separate_scope.js
deleted file mode 100644
index c123edd666..0000000000
--- a/implementation-contributed/javascriptcore/es6/default_function_parameters_separate_scope.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-return (function(a=function(){
-  return typeof b === 'undefined';
-}){
-  var b = 1;
-  return a();
-}());
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_properties.js b/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_properties.js
deleted file mode 100644
index 003a49acbe..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_properties.js
+++ /dev/null
@@ -1,72 +0,0 @@
-function test() {
-    var steps = [];
-    var backingStore = {};
-
-    function storeProperty(name, value) {
-        steps.push(`store: ${name} = ${value}`);
-        backingStore[name] = value;
-    }
-
-    function computeName(name) {
-        steps.push(`compute: ${name}`);
-        return name;
-    }
-
-    function loadValue(name, value) {
-        steps.push(`load: ${name} > ${value}`);
-        return value;
-    }
-
-    var out = {
-        get a() { return backingStore.a; },
-        set a(v) { storeProperty("a", v); },
-        get b() { return backingStore.b; },
-        set b(v) { storeProperty("b", v); },
-        get c() { return backingStore.c; },
-        set c(v) { storeProperty("c", v); },
-        get d() { return backingStore.d; },
-        set d(v) { storeProperty("d", v); }
-    };
-    ({
-        [computeName("propA")]: out.a,
-        [computeName("propB")]: out.b,
-        [computeName("propC")]: [...out["c"]],
-        [computeName("propD")]: out.d = "default"
-    } = {
-        get propA() { return loadValue("propA", "hello"); },
-        get propB() { return loadValue("propB", "world"); },
-        get propC() { return loadValue("propC", [1, 2, 3]); },
-        get propD() { return loadValue("propD"); }
-    });
-
-    var expectedSteps = [
-        "compute: propA",
-        "load: propA > hello",
-        "store: a = hello",
-
-        "compute: propB",
-        "load: propB > world",
-        "store: b = world",
-
-        "compute: propC",
-        "load: propC > 1,2,3",
-        "store: c = 1,2,3",
-
-        "compute: propD",
-        "load: propD > undefined",
-        "store: d = default"
-    ];
-
-    if (expectedSteps.length !== steps.length)
-        return false;
-    for (var i = 0; i < expectedSteps.length; ++i)
-        if (expectedSteps[i] !== steps[i])
-            return false;
-    if (`${backingStore.a} ${backingStore.b} ${backingStore.c.join(":")}` !== "hello world 1:2:3")
-        return false;
-
-    return true;
-}
-
-if (!test())
-    throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_property_default.js b/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_property_default.js
deleted file mode 100644
index f6a4e460a5..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_property_default.js
+++ /dev/null
@@ -1,8 +0,0 @@
-function test() {
-  var result0, result1, i = 0;
-  ({ [i++]: result0 = "hungryByDefault", [i++]: result1 = "hippoByDefault"} = []);
-  return result0 === "hungryByDefault" && result1 === "hippoByDefault" && i === 2;
-}
-
-if (!test())
-  throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_property_simple.js b/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_property_simple.js
deleted file mode 100644
index 12dcc79c15..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_assignment_computed_property_simple.js
+++ /dev/null
@@ -1,8 +0,0 @@
-function test() {
-  var result0, result1, i = 0;
-  ({ [i++]: result0, [i++]: result1 } = ["hungryhungry", "hippos"]);
-  return result0 === "hungryhungry" && result1 === "hippos" && i === 2;
-}
-
-if (!test())
-  throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_assignment_nested_cover_initialized_name.js b/implementation-contributed/javascriptcore/es6/destructuring_assignment_nested_cover_initialized_name.js
deleted file mode 100644
index 5b126cae35..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_assignment_nested_cover_initialized_name.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test1() {
-    var c = "it didn't work";
-    ({ a: { b: { c = "it worked" } } } = { a: { b: {} } });
-    return c === "it worked";
-}
-
-function test2() {
-    var c = "it didn't work";
-    [{ a: { b: { c = "it worked" } } }] = [{ a: { b: {} } }];
-    return c === "it worked";
-}
-
-if (!test1())
-    throw new Error("Test1 failed");
-
-if (!test2())
-    throw new Error("Test2 failed");
\ No newline at end of file
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_assignment_non_simple_target.js b/implementation-contributed/javascriptcore/es6/destructuring_assignment_non_simple_target.js
deleted file mode 100644
index ff82983228..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_assignment_non_simple_target.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-    var msg = {};
-    ({
-        name: msg.name,
-        "parameters": [msg.callback, ...msg["parameters"]],
-        0: msg[0]
-    } = {
-        name: "test",
-        parameters: [function cb() { return "test"; }, "a", "b", "c"],
-        "0": NaN
-    });
-    return msg.name === "test" && msg[0] !== msg[0] && msg.callback() === "test" && (msg.parameters + "") === "a,b,c";
-}
-
-if (!test())
-    throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_chained_iterable_destructuring.js b/implementation-contributed/javascriptcore/es6/destructuring_chained_iterable_destructuring.js
deleted file mode 100644
index 0ed27f0f62..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_chained_iterable_destructuring.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var a,b,c,d;
-[a,b] = [c,d] = [1,2];
-return a === 1 && b === 2 && c === 1 && d === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_chained_object_destructuring.js b/implementation-contributed/javascriptcore/es6/destructuring_chained_object_destructuring.js
deleted file mode 100644
index c42f8fa0dc..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_chained_object_destructuring.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var a,b,c,d;
-({a,b} = {c,d} = {a:1,b:2,c:3,d:4});
-return a === 1 && b === 2 && c === 3 && d === 4;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_computed_properties.js b/implementation-contributed/javascriptcore/es6/destructuring_computed_properties.js
deleted file mode 100644
index 2966b5c5c1..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_computed_properties.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var qux = "corge";
-var { [qux]: grault } = { corge: "garply" };
-return grault === "garply";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_defaults.js b/implementation-contributed/javascriptcore/es6/destructuring_defaults.js
deleted file mode 100644
index ed28743e46..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_defaults.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var {a = 1, b = 0, z:c = 3} = {b:2, z:undefined};
-var [d = 0, e = 5, f = 6] = [4,,undefined];
-return a === 1 && b === 2 && c === 3
-  && d === 4 && e === 5 && f === 6;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters.js b/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters.js
deleted file mode 100644
index dbc34175e2..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-return (function({a = 1, b = 0, c = 3, x:d = 0, y:e = 5},
-    [f = 6, g = 0, h = 8]) {
-  return a === 1 && b === 2 && c === 3 && d === 4 &&
-    e === 5 && f === 6 && g === 7 && h === 8;
-}({b:2, c:undefined, x:4},[, 7, undefined]));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters_new_Function_support.js b/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters_new_Function_support.js
deleted file mode 100644
index 077307c508..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters_new_Function_support.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return new Function("{a = 1, b = 0, c = 3, x:d = 0, y:e = 5}",
-  "return a === 1 && b === 2 && c === 3 && d === 4 && e === 5;"
-)({b:2, c:undefined, x:4});
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters_separate_scope.js b/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters_separate_scope.js
deleted file mode 100644
index 5c8f788f7e..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_defaults_in_parameters_separate_scope.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-return (function({a=function(){
-  return typeof b === 'undefined';
-}}){
-  var b = 1;
-  return a();
-}({}));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_defaults_let_temporal_dead_zone.js b/implementation-contributed/javascriptcore/es6/destructuring_defaults_let_temporal_dead_zone.js
deleted file mode 100644
index fa5748f4ac..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_defaults_let_temporal_dead_zone.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var {a, b = 2} = {a:1};
-try {
-  eval("let {c = c} = {};");
-  return false;
-} catch(e){}
-try {
-  eval("let {c = d, d} = {d:1};");
-  return false;
-} catch(e){}
-return a === 1 && b === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_empty_patterns.js b/implementation-contributed/javascriptcore/es6/destructuring_empty_patterns.js
deleted file mode 100644
index 0f5177f147..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_empty_patterns.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-[] = [1,2];
-({} = {a:1,b:2});
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_empty_patterns_in_parameters.js b/implementation-contributed/javascriptcore/es6/destructuring_empty_patterns_in_parameters.js
deleted file mode 100644
index 63d85bda42..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_empty_patterns_in_parameters.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return function ([],{}){
-  return arguments[0] + '' === "3,4" && arguments[1].x === "foo";
-}([3,4],{x:"foo"});
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_in_catch_heads.js b/implementation-contributed/javascriptcore/es6/destructuring_in_catch_heads.js
deleted file mode 100644
index 6468ed76e8..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_in_catch_heads.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-try {
-  throw [1,2];
-} catch([i,j]) {
-  try {
-    throw { k: 3, l: 4 };
-  } catch({k, l}) {
-    return i === 1 && j === 2 && k === 3 && l === 4;
-  }
-}
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_in_for-in_loop_heads.js b/implementation-contributed/javascriptcore/es6/destructuring_in_for-in_loop_heads.js
deleted file mode 100644
index 0ee742d3ec..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_in_for-in_loop_heads.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-for(var [i, j, k] in { qux: 1 }) {
-  return i === "q" && j === "u" && k === "x";
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_in_for-of_loop_heads.js b/implementation-contributed/javascriptcore/es6/destructuring_in_for-of_loop_heads.js
deleted file mode 100644
index 1849076c13..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_in_for-of_loop_heads.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-for(var [i, j, k] of [[1,2,3]]) {
-  return i === 1 && j === 2 && k === 3;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_in_parameters.js b/implementation-contributed/javascriptcore/es6/destructuring_in_parameters.js
deleted file mode 100644
index 39d8567b87..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_in_parameters.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-return (function({a, x:b, y:e}, [c, d]) {
-  return a === 1 && b === 2 && c === 3 &&
-    d === 4 && e === undefined;
-}({a:1, x:2}, [3, 4]));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_arguments_interaction.js b/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_arguments_interaction.js
deleted file mode 100644
index d7db90ea20..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_arguments_interaction.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-return (function({a, x:b, y:e}, [c, d]) {
-  return arguments[0].a === 1 && arguments[0].x === 2
-    && !("y" in arguments[0]) && arguments[1] + '' === "3,4";
-}({a:1, x:2}, [3, 4]));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_function_length_property.js b/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_function_length_property.js
deleted file mode 100644
index 31d70259c6..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_function_length_property.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return function({a, b}, [c, d]){}.length === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_new_Function_support.js b/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_new_Function_support.js
deleted file mode 100644
index 7c15909220..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_in_parameters_new_Function_support.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-return new Function("{a, x:b, y:e}","[c, d]",
-  "return a === 1 && b === 2 && c === 3 && "
-  + "d === 4 && e === undefined;"
-)({a:1, x:2}, [3, 4]);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_initializer_scoping.js b/implementation-contributed/javascriptcore/es6/destructuring_initializer_scoping.js
deleted file mode 100644
index 5f3b86a401..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_initializer_scoping.js
+++ /dev/null
@@ -1,17 +0,0 @@
-var outer = [];
-function test() {
-    var a = {};
-    var defaultObj = {
-        name: "default",
-        length: 3,
-        0: "a",
-        1: "b",
-        2: "c",
-        [Symbol.iterator]: Array.prototype[Symbol.iterator]
-    };
-    function tester({ name } = { name: a.name } = [outer[0], ...outer[1]] = defaultObj) { return name; }
-    return tester() === "default" && a.name === "default" && (outer + "") === "a,b,c";
-}
-
-if (!test())
-    throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_iterable_destructuring_expression.js b/implementation-contributed/javascriptcore/es6/destructuring_iterable_destructuring_expression.js
deleted file mode 100644
index cc8517b5ce..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_iterable_destructuring_expression.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var a, b, iterable = [1,2];
-return ([a, b] = iterable) === iterable;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_iterator_closing.js b/implementation-contributed/javascriptcore/es6/destructuring_iterator_closing.js
deleted file mode 100644
index ac0471109e..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_iterator_closing.js
+++ /dev/null
@@ -1,34 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var closed = false;
-var iter = global.__createIterableObject([1, 2, 3], {
-  'return': function(){ closed = true; return {}; }
-});
-var [a, b] = iter;
-return closed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_multiples_in_a_single_var_statement.js b/implementation-contributed/javascriptcore/es6/destructuring_multiples_in_a_single_var_statement.js
deleted file mode 100644
index 873e02494e..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_multiples_in_a_single_var_statement.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var [a,b] = [5,6], {c,d} = {c:7,d:8};
-return a === 5 && b === 6 && c === 7 && d === 8;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_nested.js b/implementation-contributed/javascriptcore/es6/destructuring_nested.js
deleted file mode 100644
index ddb112456d..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_nested.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var [e, {x:f, g}] = [9, {x:10}];
-var {h, x:[i]} = {h:11, x:[12]};
-return e === 9 && f === 10 && g === undefined
-  && h === 11 && i === 12;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_nested_rest.js b/implementation-contributed/javascriptcore/es6/destructuring_nested_rest.js
deleted file mode 100644
index 0383396d24..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_nested_rest.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var a = [1, 2, 3], first, last;
-[first, ...[a[2], last]] = a;
-return first === 1 && last === 3 && (a + "") === "1,2,2";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_object_destructuring_expression.js b/implementation-contributed/javascriptcore/es6/destructuring_object_destructuring_expression.js
deleted file mode 100644
index a0d7dab046..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_object_destructuring_expression.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var a, b, obj = { a:1, b:2 };
-return ({a,b} = obj) === obj;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_object_destructuring_with_primitives.js b/implementation-contributed/javascriptcore/es6/destructuring_object_destructuring_with_primitives.js
deleted file mode 100644
index 13670e5fb5..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_object_destructuring_with_primitives.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var {toFixed} = 2;
-var {slice} = '';
-var toString, match;
-({toString} = 2);
-({match} = '');
-return toFixed === Number.prototype.toFixed
-  && toString === Number.prototype.toString
-  && slice === String.prototype.slice
-  && match === String.prototype.match;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_parenthesised_left-hand-side_is_a_syntax_error.js b/implementation-contributed/javascriptcore/es6/destructuring_parenthesised_left-hand-side_is_a_syntax_error.js
deleted file mode 100644
index ec78510580..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_parenthesised_left-hand-side_is_a_syntax_error.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var a, b;
-({a,b} = {a:1,b:2});
-try {
-  eval("({a,b}) = {a:3,b:4};");
-}
-catch(e) {
-  return a === 1 && b === 2;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_rest.js b/implementation-contributed/javascriptcore/es6/destructuring_rest.js
deleted file mode 100644
index 8f70af74fe..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_rest.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var [a, ...b] = [3, 4, 5];
-var [c, ...d] = [6];
-return a === 3 && b instanceof Array && (b + "") === "4,5" &&
-   c === 6 && d instanceof Array && d.length === 0;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_throws_on_null_and_undefined.js b/implementation-contributed/javascriptcore/es6/destructuring_throws_on_null_and_undefined.js
deleted file mode 100644
index abe4dcfd2c..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_throws_on_null_and_undefined.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-try {
-  var {a} = null;
-  return false;
-} catch(e) {}
-try {
-  var {b} = undefined;
-  return false;
-} catch(e) {}
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_trailing_commas_in_iterable_patterns.js b/implementation-contributed/javascriptcore/es6/destructuring_trailing_commas_in_iterable_patterns.js
deleted file mode 100644
index 8a6a082c9e..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_trailing_commas_in_iterable_patterns.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var [a,] = [1];
-return a === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_trailing_commas_in_object_patterns.js b/implementation-contributed/javascriptcore/es6/destructuring_trailing_commas_in_object_patterns.js
deleted file mode 100644
index 1aa7f1efda..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_trailing_commas_in_object_patterns.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var {a,} = {a:1};
-return a === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_with_arrays.js b/implementation-contributed/javascriptcore/es6/destructuring_with_arrays.js
deleted file mode 100644
index 6deb63ee77..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_with_arrays.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var [a, , [b], c] = [5, null, [6]];
-var d, e;
-[d,e] = [7,8];
-return a === 5 && b === 6 && c === undefined
-  && d === 7 && e === 8;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_with_astral_plane_strings.js b/implementation-contributed/javascriptcore/es6/destructuring_with_astral_plane_strings.js
deleted file mode 100644
index 077a2e0052..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_with_astral_plane_strings.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var c;
-[c] = "𠮷𠮶";
-return c === "𠮷";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_with_generator_instances.js b/implementation-contributed/javascriptcore/es6/destructuring_with_generator_instances.js
deleted file mode 100644
index 978abff041..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_with_generator_instances.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var [a, b, c] = (function*(){ yield 1; yield 2; }());
-var d, e;
-[d, e] = (function*(){ yield 3; yield 4; }());
-return a === 1 && b === 2 && c === undefined
-  && d === 3 && e === 4;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_with_generic_iterables.js b/implementation-contributed/javascriptcore/es6/destructuring_with_generic_iterables.js
deleted file mode 100644
index 66d061f642..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_with_generic_iterables.js
+++ /dev/null
@@ -1,33 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var [a, b, c] = global.__createIterableObject([1, 2]);
-var d, e;
-[d, e] = global.__createIterableObject([3, 4]);
-return a === 1 && b === 2 && c === undefined
-  && d === 3 && e === 4;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_with_instances_of_generic_iterables.js b/implementation-contributed/javascriptcore/es6/destructuring_with_instances_of_generic_iterables.js
deleted file mode 100644
index 6f38322426..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_with_instances_of_generic_iterables.js
+++ /dev/null
@@ -1,33 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var [a, b, c] = Object.create(global.__createIterableObject([1, 2]))
-var d, e;
-[d, e] = Object.create(global.__createIterableObject([3, 4]));
-return a === 1 && b === 2 && c === undefined
-  && d === 3 && e === 4;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_with_objects.js b/implementation-contributed/javascriptcore/es6/destructuring_with_objects.js
deleted file mode 100644
index b382b0b047..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_with_objects.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var {c, x:d, e} = {c:7, x:8};
-var f, g;
-({f,g} = {f:9,g:10});
-return c === 7 && d === 8 && e === undefined
-  && f === 9 && g === 10;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_with_sparse_arrays.js b/implementation-contributed/javascriptcore/es6/destructuring_with_sparse_arrays.js
deleted file mode 100644
index beb2fd1b06..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_with_sparse_arrays.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var [a, b] = [,,];
-return a === undefined && b === undefined;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/destructuring_with_strings.js b/implementation-contributed/javascriptcore/es6/destructuring_with_strings.js
deleted file mode 100644
index 4bf3be3a4f..0000000000
--- a/implementation-contributed/javascriptcore/es6/destructuring_with_strings.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var [a, b, c] = "ab";
-var d, e;
-[d,e] = "de";
-return a === "a" && b === "b" && c === undefined
-  && d === "d" && e === "e";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_accessor_properties.js b/implementation-contributed/javascriptcore/es6/function_name_property_accessor_properties.js
deleted file mode 100644
index c3e4f9e059..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_accessor_properties.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var o = { get foo(){}, set foo(x){} };
-var descriptor = Object.getOwnPropertyDescriptor(o, "foo");
-return descriptor.get.name === "get foo" &&
-       descriptor.set.name === "set foo";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_bound_functions.js b/implementation-contributed/javascriptcore/es6/function_name_property_bound_functions.js
deleted file mode 100644
index 0b14b9741d..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_bound_functions.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-function foo() {};
-return foo.bind({}).name === "bound foo" &&
-  (function(){}).bind({}).name === "bound ";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_class_expressions.js b/implementation-contributed/javascriptcore/es6/function_name_property_class_expressions.js
deleted file mode 100644
index e7d81e2006..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_class_expressions.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return class foo {}.name === "foo" &&
-  typeof class bar { static name() {} }.name === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_class_prototype_methods.js b/implementation-contributed/javascriptcore/es6/function_name_property_class_prototype_methods.js
deleted file mode 100644
index 31142231fc..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_class_prototype_methods.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-class C { foo(){} };
-return (new C).foo.name === "foo";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_class_statements.js b/implementation-contributed/javascriptcore/es6/function_name_property_class_statements.js
deleted file mode 100644
index fb00b9be56..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_class_statements.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-class foo {};
-class bar { static name() {} };
-return foo.name === "foo" &&
-  typeof bar.name === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_class_static_methods.js b/implementation-contributed/javascriptcore/es6/function_name_property_class_static_methods.js
deleted file mode 100644
index 491642de42..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_class_static_methods.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-class C { static foo(){} };
-return C.foo.name === "foo";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_function_expressions.js b/implementation-contributed/javascriptcore/es6/function_name_property_function_expressions.js
deleted file mode 100644
index a65a8ee143..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_function_expressions.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-return (function foo(){}).name === 'foo' &&
-  (function(){}).name === '';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_function_statements.js b/implementation-contributed/javascriptcore/es6/function_name_property_function_statements.js
deleted file mode 100644
index c1f29994d8..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_function_statements.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-function foo(){};
-return foo.name === 'foo' &&
-  (function(){}).name === '';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_isnt_writable_is_configurable.js b/implementation-contributed/javascriptcore/es6/function_name_property_isnt_writable_is_configurable.js
deleted file mode 100644
index 778e21c9f9..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_isnt_writable_is_configurable.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var descriptor = Object.getOwnPropertyDescriptor(function f(){},"name");
-return descriptor.enumerable   === false &&
-       descriptor.writable     === false &&
-       descriptor.configurable === true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_new_Function.js b/implementation-contributed/javascriptcore/es6/function_name_property_new_Function.js
deleted file mode 100644
index 2407e51fa0..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_new_Function.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return (new Function).name === "anonymous";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_object_methods_class.js b/implementation-contributed/javascriptcore/es6/function_name_property_object_methods_class.js
deleted file mode 100644
index 39e9809da2..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_object_methods_class.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var o = { foo: class {}, bar: class baz {}};
-o.qux = class {};
-return o.foo.name === "foo" &&
-       o.bar.name === "baz" &&
-       o.qux.name === "";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_object_methods_function.js b/implementation-contributed/javascriptcore/es6/function_name_property_object_methods_function.js
deleted file mode 100644
index b5821b9fcf..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_object_methods_function.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var o = { foo: function(){}, bar: function baz(){}};
-o.qux = function(){};
-return o.foo.name === "foo" &&
-       o.bar.name === "baz" &&
-       o.qux.name === "";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_shorthand_methods.js b/implementation-contributed/javascriptcore/es6/function_name_property_shorthand_methods.js
deleted file mode 100644
index 557ecdbaf8..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_shorthand_methods.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var o = { foo(){} };
-return o.foo.name === "foo";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_shorthand_methods_no_lexical_binding.js b/implementation-contributed/javascriptcore/es6/function_name_property_shorthand_methods_no_lexical_binding.js
deleted file mode 100644
index b2ff9d201e..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_shorthand_methods_no_lexical_binding.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var f = "foo";
-return ({f() { return f; }}).f() === "foo";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_symbol-keyed_methods.js b/implementation-contributed/javascriptcore/es6/function_name_property_symbol-keyed_methods.js
deleted file mode 100644
index e915dd9731..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_symbol-keyed_methods.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var sym1 = Symbol("foo");
-var sym2 = Symbol();
-var o = {
-  [sym1]: function(){},
-  [sym2]: function(){}
-};
-
-return o[sym1].name === "[foo]" &&
-       o[sym2].name === "";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_variables_class.js b/implementation-contributed/javascriptcore/es6/function_name_property_variables_class.js
deleted file mode 100644
index c14de21d7d..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_variables_class.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var foo = class {};
-var bar = class baz {};
-var qux = class { static name() {} };
-return foo.name === "foo" &&
-       bar.name === "baz" &&
-       typeof qux.name === "function";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/function_name_property_variables_function.js b/implementation-contributed/javascriptcore/es6/function_name_property_variables_function.js
deleted file mode 100644
index 13b7cf8ecc..0000000000
--- a/implementation-contributed/javascriptcore/es6/function_name_property_variables_function.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var foo = function() {};
-var bar = function baz() {};
-return foo.name === "foo" && bar.name === "baz";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.constructor.js b/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.constructor.js
deleted file mode 100644
index 9b8946d755..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.constructor.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-function * g (){}
-var iterator = new g.constructor("a","b","c","yield a; yield b; yield c;")(5,6,7);
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 7 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.js b/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.js
deleted file mode 100644
index 93f7b7161e..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-function * generatorFn(){}
-var ownProto = Object.getPrototypeOf(generatorFn());
-var passed = ownProto === generatorFn.prototype;
-
-var sharedProto = Object.getPrototypeOf(ownProto);
-passed &= sharedProto !== Object.prototype &&
-  sharedProto === Object.getPrototypeOf(function*(){}.prototype) &&
-  sharedProto.hasOwnProperty('next');
-
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.return.js b/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.return.js
deleted file mode 100644
index e496b3476d..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.return.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-function * generator(){
-  yield 5; yield 6;
-};
-var iterator = generator();
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.return("quxquux");
-passed    &= item.value === "quxquux" && item.done === true;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.throw.js b/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.throw.js
deleted file mode 100644
index 89950b129d..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_%GeneratorPrototype%.throw.js
+++ /dev/null
@@ -1,20 +0,0 @@
-function test() {
-
-var passed = false;
-function * generator(){
-  try {
-    yield 5; yield 6;
-  } catch(e) {
-    passed = (e === "foo");
-  }
-};
-var iterator = generator();
-iterator.next();
-iterator.throw("foo");
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_basic_functionality.js b/implementation-contributed/javascriptcore/es6/generators_basic_functionality.js
deleted file mode 100644
index 61537610c2..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_basic_functionality.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-function * generator(){
-  yield 5; yield 6;
-};
-var iterator = generator();
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_cant_use_this_with_new.js b/implementation-contributed/javascriptcore/es6/generators_cant_use_this_with_new.js
deleted file mode 100644
index b6dfefc376..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_cant_use_this_with_new.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-function * generator(){
-  yield this.x; yield this.y;
-};
-try {
-  (new generator()).next();
-}
-catch (e) {
-  return true;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_computed_shorthand_generators.js b/implementation-contributed/javascriptcore/es6/generators_computed_shorthand_generators.js
deleted file mode 100644
index b3d3ee2031..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_computed_shorthand_generators.js
+++ /dev/null
@@ -1,22 +0,0 @@
-function test() {
-
-var garply = "generator";
-var o = {
-  * [garply] () {
-    yield 5; yield 6;
-  },
-};
-var iterator = o.generator();
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_computed_shorthand_generators_classes.js b/implementation-contributed/javascriptcore/es6/generators_computed_shorthand_generators_classes.js
deleted file mode 100644
index 0243b99e86..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_computed_shorthand_generators_classes.js
+++ /dev/null
@@ -1,22 +0,0 @@
-function test() {
-
-var garply = "generator";
-class C {
-  * [garply] () {
-    yield 5; yield 6;
-  }
-}
-var iterator = new C().generator();
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_shorthand_generator_methods.js b/implementation-contributed/javascriptcore/es6/generators_shorthand_generator_methods.js
deleted file mode 100644
index ae532ac153..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_shorthand_generator_methods.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var o = {
-  * generator() {
-    yield 5; yield 6;
-  },
-};
-var iterator = o.generator();
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_shorthand_generator_methods_classes.js b/implementation-contributed/javascriptcore/es6/generators_shorthand_generator_methods_classes.js
deleted file mode 100644
index 78649b7712..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_shorthand_generator_methods_classes.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-class C {
-  * generator() {
-    yield 5; yield 6;
-  }
-};
-var iterator = new C().generator();
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_string-keyed_shorthand_generator_methods.js b/implementation-contributed/javascriptcore/es6/generators_string-keyed_shorthand_generator_methods.js
deleted file mode 100644
index d39bfed828..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_string-keyed_shorthand_generator_methods.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var o = {
-  * "foo bar"() {
-    yield 5; yield 6;
-  },
-};
-var iterator = o["foo bar"]();
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_operator_precedence.js b/implementation-contributed/javascriptcore/es6/generators_yield_operator_precedence.js
deleted file mode 100644
index efd1e2b62d..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_operator_precedence.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var passed;
-function * generator(){
-  passed = yield 0 ? true : false;
-};
-var iterator = generator();
-iterator.next();
-iterator.next(true);
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_arrays.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_arrays.js
deleted file mode 100644
index d46ec63da1..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_arrays.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var iterator = (function * generator() {
-  yield * [5, 6];
-}());
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_astral_plane_strings.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_astral_plane_strings.js
deleted file mode 100644
index cc7c52413b..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_astral_plane_strings.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var iterator = (function * generator() {
-  yield * "𠮷𠮶";
-}());
-var item = iterator.next();
-var passed = item.value === "𠮷" && item.done === false;
-item = iterator.next();
-passed    &= item.value === "𠮶" && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_generator_instances.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_generator_instances.js
deleted file mode 100644
index 11986f0004..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_generator_instances.js
+++ /dev/null
@@ -1,20 +0,0 @@
-function test() {
-
-var iterator = (function * generator() {
-  yield * (function*(){ yield 5; yield 6; yield 7; }());
-}());
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 7 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_generic_iterables.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_generic_iterables.js
deleted file mode 100644
index 537b3a7c3e..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_generic_iterables.js
+++ /dev/null
@@ -1,40 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterator = (function * generator() {
-  yield * global.__createIterableObject([5, 6, 7]);
-}());
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 7 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_instances_of_iterables.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_instances_of_iterables.js
deleted file mode 100644
index 8167da52df..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_instances_of_iterables.js
+++ /dev/null
@@ -1,41 +0,0 @@
-if (typeof global === 'undefined') {
-var global = this;
-}
-function __createIterableObject(arr, methods) {
-methods = methods || {};
-if (typeof Symbol !== 'function' || !Symbol.iterator) {
-  return {};
-}
-arr.length++;
-var iterator = {
-  next: function() {
-    return { value: arr.shift(), done: arr.length <= 0 };
-  },
-  'return': methods['return'],
-  'throw': methods['throw']
-};
-var iterable = {};
-iterable[Symbol.iterator] = function(){ return iterator; }
-return iterable;
-}
-
-function test() {
-
-var iterator = (function * generator() {
-  yield * Object.create(__createIterableObject([5, 6, 7]));
-}());
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 6 && item.done === false;
-item = iterator.next();
-passed    &= item.value === 7 && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_iterator_closing.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_iterator_closing.js
deleted file mode 100644
index 32d317c0b8..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_iterator_closing.js
+++ /dev/null
@@ -1,46 +0,0 @@
-if (typeof global === 'undefined') {
-var global = this;
-}
-function __createIterableObject(arr, methods) {
-methods = methods || {};
-if (typeof Symbol !== 'function' || !Symbol.iterator) {
-  return {};
-}
-arr.length++;
-var iterator = {
-  next: function() {
-    return { value: arr.shift(), done: arr.length <= 0 };
-  },
-  'return': methods['return'],
-  'throw': methods['throw']
-};
-var iterable = {};
-iterable[Symbol.iterator] = function(){ return iterator; }
-return iterable;
-}
-
-function test() {
-
-var closed = '';
-var iter = __createIterableObject([1, 2, 3], {
-  'return': function(){
-    closed += 'a';
-    return {done: true};
-  }
-});
-var gen = (function* generator(){
-  try {
-    yield *iter;
-  } finally {
-    closed += 'b';
-  }
-})();
-gen.next();
-gen['return']();
-return closed === 'ab';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_iterator_closing_via_throw.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_iterator_closing_via_throw.js
deleted file mode 100644
index 1f7d634421..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_iterator_closing_via_throw.js
+++ /dev/null
@@ -1,44 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var closed = false;
-var iter = global.__createIterableObject([1, 2, 3], {
-  'throw': undefined,
-  'return': function() {
-    closed = true;
-    return {done: true};
-  }
-});
-var gen = (function*(){
-  try {
-    yield *iter;
-  } catch(e){}
-})();
-gen.next();
-gen['throw']();
-return closed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_on_non-iterables_is_a_runtime_error.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_on_non-iterables_is_a_runtime_error.js
deleted file mode 100644
index bc6e676fa0..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_on_non-iterables_is_a_runtime_error.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-var iterator = (function * generator() {
-  yield * [5];
-}());
-var item = iterator.next();
-var passed = item.value === 5 && item.done === false;
-iterator = (function * generator() {
-  yield * 5;
-}());
-try {
-  iterator.next();
-} catch (e) {
-  return passed;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_sparse_arrays.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_sparse_arrays.js
deleted file mode 100644
index 7f5da4a887..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_sparse_arrays.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var iterator = (function * generator() {
-  yield * [,,];
-}());
-var item = iterator.next();
-var passed = item.value === undefined && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/generators_yield_star_strings.js b/implementation-contributed/javascriptcore/es6/generators_yield_star_strings.js
deleted file mode 100644
index f745f3ca28..0000000000
--- a/implementation-contributed/javascriptcore/es6/generators_yield_star_strings.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var iterator = (function * generator() {
-  yield * "56";
-}());
-var item = iterator.next();
-var passed = item.value === "5" && item.done === false;
-item = iterator.next();
-passed    &= item.value === "6" && item.done === false;
-item = iterator.next();
-passed    &= item.value === undefined && item.done === true;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/let_basic_support.js b/implementation-contributed/javascriptcore/es6/let_basic_support.js
deleted file mode 100644
index b95ed90126..0000000000
--- a/implementation-contributed/javascriptcore/es6/let_basic_support.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-let foo = 123;
-return (foo === 123);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/let_basic_support_strict_mode.js b/implementation-contributed/javascriptcore/es6/let_basic_support_strict_mode.js
deleted file mode 100644
index f4ba80e258..0000000000
--- a/implementation-contributed/javascriptcore/es6/let_basic_support_strict_mode.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-'use strict';
-let foo = 123;
-return (foo === 123);
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/let_for-loop_iteration_scope.js b/implementation-contributed/javascriptcore/es6/let_for-loop_iteration_scope.js
deleted file mode 100644
index f613719e12..0000000000
--- a/implementation-contributed/javascriptcore/es6/let_for-loop_iteration_scope.js
+++ /dev/null
@@ -1,20 +0,0 @@
-function test() {
-
-let scopes = [];
-for(let i = 0; i < 2; i++) {
-  scopes.push(function(){ return i; });
-}
-let passed = (scopes[0]() === 0 && scopes[1]() === 1);
-
-scopes = [];
-for(let i in { a:1, b:1 }) {
-  scopes.push(function(){ return i; });
-}
-passed &= (scopes[0]() === "a" && scopes[1]() === "b");
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/let_for-loop_iteration_scope_strict_mode.js b/implementation-contributed/javascriptcore/es6/let_for-loop_iteration_scope_strict_mode.js
deleted file mode 100644
index c244cc4ea5..0000000000
--- a/implementation-contributed/javascriptcore/es6/let_for-loop_iteration_scope_strict_mode.js
+++ /dev/null
@@ -1,21 +0,0 @@
-function test() {
-
-'use strict';
-let scopes = [];
-for(let i = 0; i < 2; i++) {
-  scopes.push(function(){ return i; });
-}
-let passed = (scopes[0]() === 0 && scopes[1]() === 1);
-
-scopes = [];
-for(let i in { a:1, b:1 }) {
-  scopes.push(function(){ return i; });
-}
-passed &= (scopes[0]() === "a" && scopes[1]() === "b");
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/let_for-loop_statement_scope.js b/implementation-contributed/javascriptcore/es6/let_for-loop_statement_scope.js
deleted file mode 100644
index 99fa5c0e60..0000000000
--- a/implementation-contributed/javascriptcore/es6/let_for-loop_statement_scope.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-let baz = 1;
-for(let baz = 0; false; false) {}
-return baz === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/let_for-loop_statement_scope_strict_mode.js b/implementation-contributed/javascriptcore/es6/let_for-loop_statement_scope_strict_mode.js
deleted file mode 100644
index 139b800523..0000000000
--- a/implementation-contributed/javascriptcore/es6/let_for-loop_statement_scope_strict_mode.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-'use strict';
-let baz = 1;
-for(let baz = 0; false; false) {}
-return baz === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/let_is_block-scoped.js b/implementation-contributed/javascriptcore/es6/let_is_block-scoped.js
deleted file mode 100644
index 70fed14b5e..0000000000
--- a/implementation-contributed/javascriptcore/es6/let_is_block-scoped.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-let bar = 123;
-{ let bar = 456; }
-return bar === 123;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/let_is_block-scoped_strict_mode.js b/implementation-contributed/javascriptcore/es6/let_is_block-scoped_strict_mode.js
deleted file mode 100644
index f9473d6b20..0000000000
--- a/implementation-contributed/javascriptcore/es6/let_is_block-scoped_strict_mode.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-'use strict';
-let bar = 123;
-{ let bar = 456; }
-return bar === 123;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/new.target_assignment_is_an_early_error.js b/implementation-contributed/javascriptcore/es6/new.target_assignment_is_an_early_error.js
deleted file mode 100644
index 1676edf62d..0000000000
--- a/implementation-contributed/javascriptcore/es6/new.target_assignment_is_an_early_error.js
+++ /dev/null
@@ -1,18 +0,0 @@
-function test() {
-
-var passed = false;
-new function f() {
-  passed = (new.target === f);
-}();
-
-try {
-  Function("new.target = function(){};");
-} catch(e) {
-  return passed;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/new.target_in_constructors.js b/implementation-contributed/javascriptcore/es6/new.target_in_constructors.js
deleted file mode 100644
index a81926baeb..0000000000
--- a/implementation-contributed/javascriptcore/es6/new.target_in_constructors.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var passed = false;
-new function f() {
-  passed = (new.target === f);
-}();
-(function() {
-  passed &= (new.target === undefined);
-}());
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_function_statements_in_if-statement_clauses.js b/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_function_statements_in_if-statement_clauses.js
deleted file mode 100644
index 0599849114..0000000000
--- a/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_function_statements_in_if-statement_clauses.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-// Note: only available outside of strict mode.
-if (!this) return false;
-
-if(true) function foo() { return 2; }
-if(false) {} else function bar() { return 3; }
-if(true) function baz() { return 4; } else {}
-if(false) function qux() { return 5; } else function qux() { return 6; }
-return foo() === 2 && bar() === 3 && baz() === 4 && qux() === 6;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_hoisted_block-level_function_declaration.js b/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_hoisted_block-level_function_declaration.js
deleted file mode 100644
index 3fd94f4ccc..0000000000
--- a/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_hoisted_block-level_function_declaration.js
+++ /dev/null
@@ -1,23 +0,0 @@
-function test() {
-
-// Note: only available outside of strict mode.
-if (!this) return false;
-var passed = f() === 1;
-function f() { return 1; }
-
-passed &= typeof g === 'undefined';
-{ function g() { return 1; } }
-passed &= g() === 1;
-
-passed &= h() === 2;
-{ function h() { return 1; } }
-function h() { return 2; }
-passed &= h() === 1;
-
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_labeled_function_statements.js b/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_labeled_function_statements.js
deleted file mode 100644
index e132ef668b..0000000000
--- a/implementation-contributed/javascriptcore/es6/non-strict_function_semantics_labeled_function_statements.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-// Note: only available outside of strict mode.
-if (!this) return false;
-
-label: function foo() { return 2; }
-return foo() === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_accessors.js b/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_accessors.js
deleted file mode 100644
index db68e2b7fb..0000000000
--- a/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_accessors.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var x = 'y',
-    valueSet,
-    obj = {
-      get [x] () { return 1 },
-      set [x] (value) { valueSet = value }
-    };
-obj.y = 'foo';
-return obj.y === 1 && valueSet === 'foo';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_properties.js b/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_properties.js
deleted file mode 100644
index 6a6a6f7a11..0000000000
--- a/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_properties.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var x = 'y';
-return ({ [x]: 1 }).y === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_shorthand_methods.js b/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_shorthand_methods.js
deleted file mode 100644
index e53ca15df4..0000000000
--- a/implementation-contributed/javascriptcore/es6/object_literal_extensions_computed_shorthand_methods.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var x = 'y';
-return ({ [x](){ return 1 } }).y() === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/object_literal_extensions_shorthand_methods.js b/implementation-contributed/javascriptcore/es6/object_literal_extensions_shorthand_methods.js
deleted file mode 100644
index d90f5380de..0000000000
--- a/implementation-contributed/javascriptcore/es6/object_literal_extensions_shorthand_methods.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return ({ y() { return 2; } }).y() === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/object_literal_extensions_shorthand_properties.js b/implementation-contributed/javascriptcore/es6/object_literal_extensions_shorthand_properties.js
deleted file mode 100644
index 33552ebccb..0000000000
--- a/implementation-contributed/javascriptcore/es6/object_literal_extensions_shorthand_properties.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var a = 7, b = 8, c = {a,b};
-return c.a === 7 && c.b === 8;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/object_literal_extensions_string-keyed_shorthand_methods.js b/implementation-contributed/javascriptcore/es6/object_literal_extensions_string-keyed_shorthand_methods.js
deleted file mode 100644
index be95a3a71a..0000000000
--- a/implementation-contributed/javascriptcore/es6/object_literal_extensions_string-keyed_shorthand_methods.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return ({ "foo bar"() { return 4; } })["foo bar"]() === 4;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_binary_literals.js b/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_binary_literals.js
deleted file mode 100644
index d3a3d43fa2..0000000000
--- a/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_binary_literals.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return 0b10 === 2 && 0B10 === 2;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_binary_supported_by_Number.js b/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_binary_supported_by_Number.js
deleted file mode 100644
index b3be669029..0000000000
--- a/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_binary_supported_by_Number.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Number('0b1') === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_octal_literals.js b/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_octal_literals.js
deleted file mode 100644
index 6d6514b4cc..0000000000
--- a/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_octal_literals.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return 0o10 === 8 && 0O10 === 8;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_octal_supported_by_Number.js b/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_octal_supported_by_Number.js
deleted file mode 100644
index ed7df58761..0000000000
--- a/implementation-contributed/javascriptcore/es6/octal_and_binary_literals_octal_supported_by_Number.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Number('0o1') === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/own_property_order_JSON.parse.js b/implementation-contributed/javascriptcore/es6/own_property_order_JSON.parse.js
deleted file mode 100644
index c2b53dba1c..0000000000
--- a/implementation-contributed/javascriptcore/es6/own_property_order_JSON.parse.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var result = '';
-JSON.parse(
-  '{"0":true,"1":true,"2":true,"3":true,"4":true,"9":true," ":true,"D":true,"B":true,"-1":true,"A":true,"C":true}',
-  function reviver(k,v) {
-    result += k;
-    return v;
-  }
-);
-return result === "012349 DB-1AC";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/own_property_order_JSON.stringify.js b/implementation-contributed/javascriptcore/es6/own_property_order_JSON.stringify.js
deleted file mode 100644
index c40af958af..0000000000
--- a/implementation-contributed/javascriptcore/es6/own_property_order_JSON.stringify.js
+++ /dev/null
@@ -1,27 +0,0 @@
-function test() {
-
-var obj = {
-  2:    true,
-  0:    true,
-  1:    true,
-  ' ':  true,
-  9:    true,
-  D:    true,
-  B:    true,
-  '-1': true,
-};
-obj.A = true;
-obj[3] = true;
-Object.defineProperty(obj, 'C', { value: true, enumerable: true });
-Object.defineProperty(obj, '4', { value: true, enumerable: true });
-delete obj[2];
-obj[2] = true;
-
-return JSON.stringify(obj) ===
-  '{"0":true,"1":true,"2":true,"3":true,"4":true,"9":true," ":true,"D":true,"B":true,"-1":true,"A":true,"C":true}';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/own_property_order_Object.assign.js b/implementation-contributed/javascriptcore/es6/own_property_order_Object.assign.js
deleted file mode 100644
index 46627a9fc5..0000000000
--- a/implementation-contributed/javascriptcore/es6/own_property_order_Object.assign.js
+++ /dev/null
@@ -1,36 +0,0 @@
-function test() {
-
-function f(key) {
-  return {
-    get: function() { result += key; return true; },
-    set: Object,
-    enumerable: true
-  };
-};
-var result = '';
-var obj = Object.defineProperties({}, {
-  2:    f(2),
-  0:    f(0),
-  1:    f(1),
-  ' ':  f(' '),
-  9:    f(9),
-  D:    f('D'),
-  B:    f('B'),
-  '-1': f('-1'),
-});
-Object.defineProperty(obj,'A',f('A'));
-Object.defineProperty(obj,'3',f('3'));
-Object.defineProperty(obj,'C',f('C'));
-Object.defineProperty(obj,'4',f('4'));
-delete obj[2];
-obj[2] = true;
-
-Object.assign({}, obj);
-
-return result === "012349 DB-1AC";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/own_property_order_Object.getOwnPropertyNames.js b/implementation-contributed/javascriptcore/es6/own_property_order_Object.getOwnPropertyNames.js
deleted file mode 100644
index dbb40d03b6..0000000000
--- a/implementation-contributed/javascriptcore/es6/own_property_order_Object.getOwnPropertyNames.js
+++ /dev/null
@@ -1,26 +0,0 @@
-function test() {
-
-var obj = {
-  2:    true,
-  0:    true,
-  1:    true,
-  ' ':  true,
-  9:    true,
-  D:    true,
-  B:    true,
-  '-1': true,
-};
-obj.A = true;
-obj[3] = true;
-Object.defineProperty(obj, 'C', { value: true, enumerable: true });
-Object.defineProperty(obj, '4', { value: true, enumerable: true });
-delete obj[2];
-obj[2] = true;
-
-return Object.getOwnPropertyNames(obj).join('') === "012349 DB-1AC";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/own_property_order_Object.keys.js b/implementation-contributed/javascriptcore/es6/own_property_order_Object.keys.js
deleted file mode 100644
index 1ba0ca4b4a..0000000000
--- a/implementation-contributed/javascriptcore/es6/own_property_order_Object.keys.js
+++ /dev/null
@@ -1,26 +0,0 @@
-function test() {
-
-var obj = {
-  2:    true,
-  0:    true,
-  1:    true,
-  ' ':  true,
-  9:    true,
-  D:    true,
-  B:    true,
-  '-1': true,
-};
-obj.A = true;
-obj[3] = true;
-Object.defineProperty(obj, 'C', { value: true, enumerable: true });
-Object.defineProperty(obj, '4', { value: true, enumerable: true });
-delete obj[2];
-obj[2] = true;
-
-return Object.keys(obj).join('') === "012349 DB-1AC";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/own_property_order_Reflect.ownKeys_string_key_order.js b/implementation-contributed/javascriptcore/es6/own_property_order_Reflect.ownKeys_string_key_order.js
deleted file mode 100644
index 4f3db06806..0000000000
--- a/implementation-contributed/javascriptcore/es6/own_property_order_Reflect.ownKeys_string_key_order.js
+++ /dev/null
@@ -1,26 +0,0 @@
-function test() {
-
-var obj = {
-  2:    true,
-  0:    true,
-  1:    true,
-  ' ':  true,
-  9:    true,
-  D:    true,
-  B:    true,
-  '-1': true,
-};
-obj.A = true;
-obj[3] = true;
-Object.defineProperty(obj, 'C', { value: true, enumerable: true });
-Object.defineProperty(obj, '4', { value: true, enumerable: true });
-delete obj[2];
-obj[2] = true;
-
-return Reflect.ownKeys(obj).join('') === "012349 DB-1AC";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/own_property_order_Reflect.ownKeys_symbol_key_order.js b/implementation-contributed/javascriptcore/es6/own_property_order_Reflect.ownKeys_symbol_key_order.js
deleted file mode 100644
index f210d4c6fa..0000000000
--- a/implementation-contributed/javascriptcore/es6/own_property_order_Reflect.ownKeys_symbol_key_order.js
+++ /dev/null
@@ -1,24 +0,0 @@
-function test() {
-
-var sym1 = Symbol(), sym2 = Symbol(), sym3 = Symbol();
-var obj = {
-  1:    true,
-  A:    true,
-};
-obj.B = true;
-obj[sym1] = true;
-obj[2] = true;
-obj[sym2] = true;
-Object.defineProperty(obj, 'C', { value: true, enumerable: true });
-Object.defineProperty(obj, sym3,{ value: true, enumerable: true });
-Object.defineProperty(obj, 'D', { value: true, enumerable: true });
-
-var result = Reflect.ownKeys(obj);
-var l = result.length;
-return result[l-3] === sym1 && result[l-2] === sym2 && result[l-1] === sym3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/own_property_order_for..in.js b/implementation-contributed/javascriptcore/es6/own_property_order_for..in.js
deleted file mode 100644
index 11da8b0334..0000000000
--- a/implementation-contributed/javascriptcore/es6/own_property_order_for..in.js
+++ /dev/null
@@ -1,30 +0,0 @@
-function test() {
-
-var obj = {
-  2:    true,
-  0:    true,
-  1:    true,
-  ' ':  true,
-  9:    true,
-  D:    true,
-  B:    true,
-  '-1': true,
-};
-obj.A = true;
-obj[3] = true;
-Object.defineProperty(obj, 'C', { value: true, enumerable: true });
-Object.defineProperty(obj, '4', { value: true, enumerable: true });
-delete obj[2];
-obj[2] = true;
-
-var result = '';
-for(var i in obj) {
-  result += i;
-}
-return result === "012349 DB-1AC";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/proper_tail_calls_tail_call_optimisation_direct_recursion.js b/implementation-contributed/javascriptcore/es6/proper_tail_calls_tail_call_optimisation_direct_recursion.js
deleted file mode 100644
index f5d20ac84f..0000000000
--- a/implementation-contributed/javascriptcore/es6/proper_tail_calls_tail_call_optimisation_direct_recursion.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-"use strict";
-return (function f(n){
-  if (n <= 0) {
-    return  "foo";
-  }
-  return f(n - 1);
-}(1e6)) === "foo";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/proper_tail_calls_tail_call_optimisation_mutual_recursion.js b/implementation-contributed/javascriptcore/es6/proper_tail_calls_tail_call_optimisation_mutual_recursion.js
deleted file mode 100644
index 568367c407..0000000000
--- a/implementation-contributed/javascriptcore/es6/proper_tail_calls_tail_call_optimisation_mutual_recursion.js
+++ /dev/null
@@ -1,22 +0,0 @@
-function test() {
-
-"use strict";
-function f(n){
-  if (n <= 0) {
-    return  "foo";
-  }
-  return g(n - 1);
-}
-function g(n){
-  if (n <= 0) {
-    return  "bar";
-  }
-  return f(n - 1);
-}
-return f(1e6) === "foo" && f(1e6+1) === "bar";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_arrow_functions.js b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_arrow_functions.js
index 36298a01fa..984216b51a 100644
--- a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_arrow_functions.js
+++ b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_arrow_functions.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 function correctProtoBound(proto) {
diff --git a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_basic_functions.js b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_basic_functions.js
index 9e2ced8dca..405f1fdee2 100644
--- a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_basic_functions.js
+++ b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_basic_functions.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 function correctProtoBound(proto) {
diff --git a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_classes.js b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_classes.js
index f984e50ca8..c56b968b32 100644
--- a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_classes.js
+++ b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_classes.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 function correctProtoBound(proto) {
diff --git a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_generator_functions.js b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_generator_functions.js
index 97274998ae..bb0f3cfabe 100644
--- a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_generator_functions.js
+++ b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_generator_functions.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 function correctProtoBound(proto) {
diff --git a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_subclasses.js b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_subclasses.js
index a0be8521ac..883466d335 100644
--- a/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_subclasses.js
+++ b/implementation-contributed/javascriptcore/es6/prototype_of_bound_functions_subclasses.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 function correctProtoBound(superclass) {
diff --git a/implementation-contributed/javascriptcore/es6/rest_parameters_arguments_object_interaction.js b/implementation-contributed/javascriptcore/es6/rest_parameters_arguments_object_interaction.js
deleted file mode 100644
index 55d865619e..0000000000
--- a/implementation-contributed/javascriptcore/es6/rest_parameters_arguments_object_interaction.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return (function (foo, ...args) {
-  foo = "qux";
-  // The arguments object is not mapped to the
-  // parameters, even outside of strict mode.
-  return arguments.length === 3
-    && arguments[0] === "foo"
-    && arguments[1] === "bar"
-    && arguments[2] === "baz";
-}("foo", "bar", "baz"));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/rest_parameters_basic_functionality.js b/implementation-contributed/javascriptcore/es6/rest_parameters_basic_functionality.js
deleted file mode 100644
index 4dd29cb581..0000000000
--- a/implementation-contributed/javascriptcore/es6/rest_parameters_basic_functionality.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return (function (foo, ...args) {
-  return args instanceof Array && args + "" === "bar,baz";
-}("foo", "bar", "baz"));
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/rest_parameters_cant_be_used_in_setters.js b/implementation-contributed/javascriptcore/es6/rest_parameters_cant_be_used_in_setters.js
index f8092591a3..ef420f7424 100644
--- a/implementation-contributed/javascriptcore/es6/rest_parameters_cant_be_used_in_setters.js
+++ b/implementation-contributed/javascriptcore/es6/rest_parameters_cant_be_used_in_setters.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 return (function (...args) {
diff --git a/implementation-contributed/javascriptcore/es6/rest_parameters_function_length_property.js b/implementation-contributed/javascriptcore/es6/rest_parameters_function_length_property.js
deleted file mode 100644
index 394bd84f38..0000000000
--- a/implementation-contributed/javascriptcore/es6/rest_parameters_function_length_property.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return function(a, ...b){}.length === 1 && function(...c){}.length === 0;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/rest_parameters_new_Function_support.js b/implementation-contributed/javascriptcore/es6/rest_parameters_new_Function_support.js
index 30e4e05b87..0aaaa2e699 100644
--- a/implementation-contributed/javascriptcore/es6/rest_parameters_new_Function_support.js
+++ b/implementation-contributed/javascriptcore/es6/rest_parameters_new_Function_support.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 return new Function("a", "...b",
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_spreading_non-iterables_is_a_runtime_error.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_spreading_non-iterables_is_a_runtime_error.js
deleted file mode 100644
index 78047d0579..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_spreading_non-iterables_is_a_runtime_error.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-try {
-  Math.max(...2);
-} catch(e) {
-  return Math.max(...[1, 2, 3]) === 3;
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_arrays_in_array_literals.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_arrays_in_array_literals.js
deleted file mode 100644
index 10a1ad2830..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_arrays_in_array_literals.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return [...[1, 2, 3]][2] === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_arrays_in_function_calls.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_arrays_in_function_calls.js
deleted file mode 100644
index 3c200da44d..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_arrays_in_function_calls.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Math.max(...[1, 2, 3]) === 3
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_astral_plane_strings_in_array_literals.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_astral_plane_strings_in_array_literals.js
deleted file mode 100644
index 62d95a85a5..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_astral_plane_strings_in_array_literals.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return [..."𠮷𠮶"][0] === "𠮷";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_astral_plane_strings_in_function_calls.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_astral_plane_strings_in_function_calls.js
deleted file mode 100644
index c9b5fc937a..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_astral_plane_strings_in_function_calls.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Array(..."𠮷𠮶")[0] === "𠮷";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generator_instances_in_arrays.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generator_instances_in_arrays.js
deleted file mode 100644
index c386f27c97..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generator_instances_in_arrays.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var iterable = (function*(){ yield "b"; yield "c"; yield "d"; }());
-return ["a", ...iterable, "e"][3] === "d";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generator_instances_in_calls.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generator_instances_in_calls.js
deleted file mode 100644
index 67207ad167..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generator_instances_in_calls.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var iterable = (function*(){ yield 1; yield 2; yield 3; }());
-return Math.max(...iterable) === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generic_iterables_in_arrays.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generic_iterables_in_arrays.js
deleted file mode 100644
index bbda856908..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generic_iterables_in_arrays.js
+++ /dev/null
@@ -1,30 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterable = global.__createIterableObject(["b", "c", "d"]);
-return ["a", ...iterable, "e"][3] === "d";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generic_iterables_in_calls.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generic_iterables_in_calls.js
deleted file mode 100644
index 94e46a68d9..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_generic_iterables_in_calls.js
+++ /dev/null
@@ -1,30 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterable = global.__createIterableObject([1, 2, 3]);
-return Math.max(...iterable) === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_instances_of_iterables_in_arrays.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_instances_of_iterables_in_arrays.js
deleted file mode 100644
index ca09728991..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_instances_of_iterables_in_arrays.js
+++ /dev/null
@@ -1,30 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterable = global.__createIterableObject(["b", "c", "d"]);
-return ["a", ...Object.create(iterable), "e"][3] === "d";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_instances_of_iterables_in_calls.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_instances_of_iterables_in_calls.js
deleted file mode 100644
index 648f88e6b5..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_instances_of_iterables_in_calls.js
+++ /dev/null
@@ -1,30 +0,0 @@
-var global = this;
-
-function __createIterableObject(arr, methods) {
-  methods = methods || {};
-  if (typeof Symbol !== 'function' || !Symbol.iterator) {
-    return {};
-  }
-  arr.length++;
-  var iterator = {
-    next: function() {
-      return { value: arr.shift(), done: arr.length <= 0 };
-    },
-    'return': methods['return'],
-    'throw': methods['throw']
-  };
-  var iterable = {};
-  iterable[Symbol.iterator] = function(){ return iterator; }
-  return iterable;
-}
-
-function test() {
-
-var iterable = global.__createIterableObject([1, 2, 3]);
-return Math.max(...Object.create(iterable)) === 3;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_sparse_arrays_in_array_literals.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_sparse_arrays_in_array_literals.js
deleted file mode 100644
index 3883f4688e..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_sparse_arrays_in_array_literals.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var a = [...[,,]];
-return "0" in a && "1" in a && '' + a[0] + a[1] === "undefinedundefined";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_sparse_arrays_in_function_calls.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_sparse_arrays_in_function_calls.js
deleted file mode 100644
index ef1c408482..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_sparse_arrays_in_function_calls.js
+++ /dev/null
@@ -1,10 +0,0 @@
-function test() {
-
-var a = Array(...[,,]);
-return "0" in a && "1" in a && '' + a[0] + a[1] === "undefinedundefined";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_strings_in_array_literals.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_strings_in_array_literals.js
deleted file mode 100644
index ab10a82471..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_strings_in_array_literals.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return ["a", ..."bcd", "e"][3] === "d";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_strings_in_function_calls.js b/implementation-contributed/javascriptcore/es6/spread_..._operator_with_strings_in_function_calls.js
deleted file mode 100644
index 27e9a39382..0000000000
--- a/implementation-contributed/javascriptcore/es6/spread_..._operator_with_strings_in_function_calls.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return Math.max(..."1234") === 4;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/super_constructor_calls_use_correct_new.target_binding.js b/implementation-contributed/javascriptcore/es6/super_constructor_calls_use_correct_new.target_binding.js
deleted file mode 100644
index 1b91616ad3..0000000000
--- a/implementation-contributed/javascriptcore/es6/super_constructor_calls_use_correct_new.target_binding.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var passed;
-class B {
-  constructor() { passed = (new.target === C); }
-}
-class C extends B {
-  constructor() { super(); }
-}
-new C();
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/super_expression_in_constructors.js b/implementation-contributed/javascriptcore/es6/super_expression_in_constructors.js
deleted file mode 100644
index 514e7c2e14..0000000000
--- a/implementation-contributed/javascriptcore/es6/super_expression_in_constructors.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-class B {
-  constructor(a) { return ["foo" + a]; }
-}
-class C extends B {
-  constructor(a) { return super("bar" + a); }
-}
-return new C("baz")[0] === "foobarbaz";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/super_in_methods_method_calls.js b/implementation-contributed/javascriptcore/es6/super_in_methods_method_calls.js
deleted file mode 100644
index bd3788737d..0000000000
--- a/implementation-contributed/javascriptcore/es6/super_in_methods_method_calls.js
+++ /dev/null
@@ -1,15 +0,0 @@
-function test() {
-
-class B {
-  qux(a) { return "foo" + a; }
-}
-class C extends B {
-  qux(a) { return super.qux("bar" + a); }
-}
-return new C().qux("baz") === "foobarbaz";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/super_in_methods_property_access.js b/implementation-contributed/javascriptcore/es6/super_in_methods_property_access.js
deleted file mode 100644
index f6c651db8a..0000000000
--- a/implementation-contributed/javascriptcore/es6/super_in_methods_property_access.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-class B {}
-B.prototype.qux = "foo";
-B.prototype.corge = "baz";
-class C extends B {
-  quux(a) { return super.qux + a + super["corge"]; }
-}
-C.prototype.qux = "garply";
-return new C().quux("bar") === "foobarbaz";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/super_is_statically_bound.js b/implementation-contributed/javascriptcore/es6/super_is_statically_bound.js
deleted file mode 100644
index 0a73ebee54..0000000000
--- a/implementation-contributed/javascriptcore/es6/super_is_statically_bound.js
+++ /dev/null
@@ -1,19 +0,0 @@
-function test() {
-
-class B {
-  qux() { return "bar"; }
-}
-class C extends B {
-  qux() { return super.qux() + this.corge; }
-}
-var obj = {
-  qux: C.prototype.qux,
-  corge: "ley"
-};
-return obj.qux() === "barley";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/super_method_calls_use_correct_this_binding.js b/implementation-contributed/javascriptcore/es6/super_method_calls_use_correct_this_binding.js
deleted file mode 100644
index a0924bd7be..0000000000
--- a/implementation-contributed/javascriptcore/es6/super_method_calls_use_correct_this_binding.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-class B {
-  qux(a) { return this.foo + a; }
-}
-class C extends B {
-  qux(a) { return super.qux("bar" + a); }
-}
-var obj = new C();
-obj.foo = "foo";
-return obj.qux("baz") === "foobarbaz";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/super_statement_in_constructors.js b/implementation-contributed/javascriptcore/es6/super_statement_in_constructors.js
deleted file mode 100644
index a3f1218546..0000000000
--- a/implementation-contributed/javascriptcore/es6/super_statement_in_constructors.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var passed = false;
-class B {
-  constructor(a) { passed = (a === "barbaz"); }
-}
-class C extends B {
-  constructor(a) { super("bar" + a); }
-}
-new C("baz");
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/template_strings_basic_functionality.js b/implementation-contributed/javascriptcore/es6/template_strings_basic_functionality.js
deleted file mode 100644
index 865810a013..0000000000
--- a/implementation-contributed/javascriptcore/es6/template_strings_basic_functionality.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var a = "ba", b = "QUX";
-return `foo bar
-${a + "z"} ${b.toLowerCase()}` === "foo bar\nbaz qux";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/template_strings_line_break_normalisation.js b/implementation-contributed/javascriptcore/es6/template_strings_line_break_normalisation.js
deleted file mode 100644
index 9f0f8fbf4b..0000000000
--- a/implementation-contributed/javascriptcore/es6/template_strings_line_break_normalisation.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var cr   = eval("`x" + String.fromCharCode(13)    + "y`");
-var lf   = eval("`x" + String.fromCharCode(10)    + "y`");
-var crlf = eval("`x" + String.fromCharCode(13,10) + "y`");
-
-return cr.length === 3 && lf.length === 3 && crlf.length === 3
-  && cr[1] === lf[1] && lf[1] === crlf[1] && crlf[1] === '\n';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/template_strings_passed_array_is_frozen.js b/implementation-contributed/javascriptcore/es6/template_strings_passed_array_is_frozen.js
deleted file mode 100644
index 9957c4e435..0000000000
--- a/implementation-contributed/javascriptcore/es6/template_strings_passed_array_is_frozen.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-return (function(parts) {
-  return Object.isFrozen(parts) && Object.isFrozen(parts.raw);
-}) `foo${0}bar${0}baz`;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/template_strings_tagged_template_strings.js b/implementation-contributed/javascriptcore/es6/template_strings_tagged_template_strings.js
deleted file mode 100644
index 9db083afe3..0000000000
--- a/implementation-contributed/javascriptcore/es6/template_strings_tagged_template_strings.js
+++ /dev/null
@@ -1,20 +0,0 @@
-function test() {
-
-var called = false;
-function fn(parts, a, b) {
-  called = true;
-  return parts instanceof Array &&
-    parts[0]     === "foo"      &&
-    parts[1]     === "bar\n"    &&
-    parts.raw[0] === "foo"      &&
-    parts.raw[1] === "bar\\n"   &&
-    a === 123                   &&
-    b === 456;
-}
-return fn `foo${123}bar\n${456}` && called;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/template_strings_toString_conversion.js b/implementation-contributed/javascriptcore/es6/template_strings_toString_conversion.js
deleted file mode 100644
index 8dddb6243f..0000000000
--- a/implementation-contributed/javascriptcore/es6/template_strings_toString_conversion.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var a = {
-  toString: function() { return "foo"; },
-  valueOf: function() { return "bar"; },
-};
-return `${a}` === "foo";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.from.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.from.js
deleted file mode 100644
index 3d6d006a4c..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.from.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.from === "function" &&
-  typeof Uint8Array.from === "function" &&
-  typeof Uint8ClampedArray.from === "function" &&
-  typeof Int16Array.from === "function" &&
-  typeof Uint16Array.from === "function" &&
-  typeof Int32Array.from === "function" &&
-  typeof Uint32Array.from === "function" &&
-  typeof Float32Array.from === "function" &&
-  typeof Float64Array.from === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.of.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.of.js
deleted file mode 100644
index 92f2419d4d..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.of.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.of === "function" &&
-  typeof Uint8Array.of === "function" &&
-  typeof Uint8ClampedArray.of === "function" &&
-  typeof Int16Array.of === "function" &&
-  typeof Uint16Array.of === "function" &&
-  typeof Int32Array.of === "function" &&
-  typeof Uint32Array.of === "function" &&
-  typeof Float32Array.of === "function" &&
-  typeof Float64Array.of === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.copyWithin.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.copyWithin.js
deleted file mode 100644
index 2430505ad9..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.copyWithin.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.copyWithin === "function" &&
-  typeof Uint8Array.prototype.copyWithin === "function" &&
-  typeof Uint8ClampedArray.prototype.copyWithin === "function" &&
-  typeof Int16Array.prototype.copyWithin === "function" &&
-  typeof Uint16Array.prototype.copyWithin === "function" &&
-  typeof Int32Array.prototype.copyWithin === "function" &&
-  typeof Uint32Array.prototype.copyWithin === "function" &&
-  typeof Float32Array.prototype.copyWithin === "function" &&
-  typeof Float64Array.prototype.copyWithin === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.entries.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.entries.js
deleted file mode 100644
index 9cafb06957..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.entries.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.entries === "function" &&
-  typeof Uint8Array.prototype.entries === "function" &&
-  typeof Uint8ClampedArray.prototype.entries === "function" &&
-  typeof Int16Array.prototype.entries === "function" &&
-  typeof Uint16Array.prototype.entries === "function" &&
-  typeof Int32Array.prototype.entries === "function" &&
-  typeof Uint32Array.prototype.entries === "function" &&
-  typeof Float32Array.prototype.entries === "function" &&
-  typeof Float64Array.prototype.entries === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.every.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.every.js
deleted file mode 100644
index 0c59641080..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.every.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.every === "function" &&
-  typeof Uint8Array.prototype.every === "function" &&
-  typeof Uint8ClampedArray.prototype.every === "function" &&
-  typeof Int16Array.prototype.every === "function" &&
-  typeof Uint16Array.prototype.every === "function" &&
-  typeof Int32Array.prototype.every === "function" &&
-  typeof Uint32Array.prototype.every === "function" &&
-  typeof Float32Array.prototype.every === "function" &&
-  typeof Float64Array.prototype.every === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.fill.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.fill.js
deleted file mode 100644
index 4f3ef6c01c..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.fill.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.fill === "function" &&
-  typeof Uint8Array.prototype.fill === "function" &&
-  typeof Uint8ClampedArray.prototype.fill === "function" &&
-  typeof Int16Array.prototype.fill === "function" &&
-  typeof Uint16Array.prototype.fill === "function" &&
-  typeof Int32Array.prototype.fill === "function" &&
-  typeof Uint32Array.prototype.fill === "function" &&
-  typeof Float32Array.prototype.fill === "function" &&
-  typeof Float64Array.prototype.fill === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.filter.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.filter.js
deleted file mode 100644
index 3b6b8ca142..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.filter.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.filter === "function" &&
-  typeof Uint8Array.prototype.filter === "function" &&
-  typeof Uint8ClampedArray.prototype.filter === "function" &&
-  typeof Int16Array.prototype.filter === "function" &&
-  typeof Uint16Array.prototype.filter === "function" &&
-  typeof Int32Array.prototype.filter === "function" &&
-  typeof Uint32Array.prototype.filter === "function" &&
-  typeof Float32Array.prototype.filter === "function" &&
-  typeof Float64Array.prototype.filter === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.find.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.find.js
deleted file mode 100644
index d47040d564..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.find.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.find === "function" &&
-  typeof Uint8Array.prototype.find === "function" &&
-  typeof Uint8ClampedArray.prototype.find === "function" &&
-  typeof Int16Array.prototype.find === "function" &&
-  typeof Uint16Array.prototype.find === "function" &&
-  typeof Int32Array.prototype.find === "function" &&
-  typeof Uint32Array.prototype.find === "function" &&
-  typeof Float32Array.prototype.find === "function" &&
-  typeof Float64Array.prototype.find === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.findIndex.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.findIndex.js
deleted file mode 100644
index acb1294d2c..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.findIndex.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.findIndex === "function" &&
-  typeof Uint8Array.prototype.findIndex === "function" &&
-  typeof Uint8ClampedArray.prototype.findIndex === "function" &&
-  typeof Int16Array.prototype.findIndex === "function" &&
-  typeof Uint16Array.prototype.findIndex === "function" &&
-  typeof Int32Array.prototype.findIndex === "function" &&
-  typeof Uint32Array.prototype.findIndex === "function" &&
-  typeof Float32Array.prototype.findIndex === "function" &&
-  typeof Float64Array.prototype.findIndex === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.forEach.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.forEach.js
deleted file mode 100644
index 47775eddc1..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.forEach.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.forEach === "function" &&
-  typeof Uint8Array.prototype.forEach === "function" &&
-  typeof Uint8ClampedArray.prototype.forEach === "function" &&
-  typeof Int16Array.prototype.forEach === "function" &&
-  typeof Uint16Array.prototype.forEach === "function" &&
-  typeof Int32Array.prototype.forEach === "function" &&
-  typeof Uint32Array.prototype.forEach === "function" &&
-  typeof Float32Array.prototype.forEach === "function" &&
-  typeof Float64Array.prototype.forEach === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.indexOf.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.indexOf.js
deleted file mode 100644
index 9a209f4af4..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.indexOf.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.indexOf === "function" &&
-  typeof Uint8Array.prototype.indexOf === "function" &&
-  typeof Uint8ClampedArray.prototype.indexOf === "function" &&
-  typeof Int16Array.prototype.indexOf === "function" &&
-  typeof Uint16Array.prototype.indexOf === "function" &&
-  typeof Int32Array.prototype.indexOf === "function" &&
-  typeof Uint32Array.prototype.indexOf === "function" &&
-  typeof Float32Array.prototype.indexOf === "function" &&
-  typeof Float64Array.prototype.indexOf === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.join.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.join.js
deleted file mode 100644
index f8eaf8bc17..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.join.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.join === "function" &&
-  typeof Uint8Array.prototype.join === "function" &&
-  typeof Uint8ClampedArray.prototype.join === "function" &&
-  typeof Int16Array.prototype.join === "function" &&
-  typeof Uint16Array.prototype.join === "function" &&
-  typeof Int32Array.prototype.join === "function" &&
-  typeof Uint32Array.prototype.join === "function" &&
-  typeof Float32Array.prototype.join === "function" &&
-  typeof Float64Array.prototype.join === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.keys.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.keys.js
deleted file mode 100644
index e14a9c73e8..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.keys.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.keys === "function" &&
-  typeof Uint8Array.prototype.keys === "function" &&
-  typeof Uint8ClampedArray.prototype.keys === "function" &&
-  typeof Int16Array.prototype.keys === "function" &&
-  typeof Uint16Array.prototype.keys === "function" &&
-  typeof Int32Array.prototype.keys === "function" &&
-  typeof Uint32Array.prototype.keys === "function" &&
-  typeof Float32Array.prototype.keys === "function" &&
-  typeof Float64Array.prototype.keys === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.lastIndexOf.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.lastIndexOf.js
deleted file mode 100644
index 01955d106a..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.lastIndexOf.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.lastIndexOf === "function" &&
-  typeof Uint8Array.prototype.lastIndexOf === "function" &&
-  typeof Uint8ClampedArray.prototype.lastIndexOf === "function" &&
-  typeof Int16Array.prototype.lastIndexOf === "function" &&
-  typeof Uint16Array.prototype.lastIndexOf === "function" &&
-  typeof Int32Array.prototype.lastIndexOf === "function" &&
-  typeof Uint32Array.prototype.lastIndexOf === "function" &&
-  typeof Float32Array.prototype.lastIndexOf === "function" &&
-  typeof Float64Array.prototype.lastIndexOf === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.map.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.map.js
deleted file mode 100644
index d4d299293a..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.map.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.map === "function" &&
-  typeof Uint8Array.prototype.map === "function" &&
-  typeof Uint8ClampedArray.prototype.map === "function" &&
-  typeof Int16Array.prototype.map === "function" &&
-  typeof Uint16Array.prototype.map === "function" &&
-  typeof Int32Array.prototype.map === "function" &&
-  typeof Uint32Array.prototype.map === "function" &&
-  typeof Float32Array.prototype.map === "function" &&
-  typeof Float64Array.prototype.map === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reduce.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reduce.js
deleted file mode 100644
index e7ba0a4d67..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reduce.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.reduce === "function" &&
-  typeof Uint8Array.prototype.reduce === "function" &&
-  typeof Uint8ClampedArray.prototype.reduce === "function" &&
-  typeof Int16Array.prototype.reduce === "function" &&
-  typeof Uint16Array.prototype.reduce === "function" &&
-  typeof Int32Array.prototype.reduce === "function" &&
-  typeof Uint32Array.prototype.reduce === "function" &&
-  typeof Float32Array.prototype.reduce === "function" &&
-  typeof Float64Array.prototype.reduce === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reduceRight.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reduceRight.js
deleted file mode 100644
index 23cb2c7016..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reduceRight.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.reduceRight === "function" &&
-  typeof Uint8Array.prototype.reduceRight === "function" &&
-  typeof Uint8ClampedArray.prototype.reduceRight === "function" &&
-  typeof Int16Array.prototype.reduceRight === "function" &&
-  typeof Uint16Array.prototype.reduceRight === "function" &&
-  typeof Int32Array.prototype.reduceRight === "function" &&
-  typeof Uint32Array.prototype.reduceRight === "function" &&
-  typeof Float32Array.prototype.reduceRight === "function" &&
-  typeof Float64Array.prototype.reduceRight === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reverse.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reverse.js
deleted file mode 100644
index a0b903eca5..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.reverse.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.reverse === "function" &&
-  typeof Uint8Array.prototype.reverse === "function" &&
-  typeof Uint8ClampedArray.prototype.reverse === "function" &&
-  typeof Int16Array.prototype.reverse === "function" &&
-  typeof Uint16Array.prototype.reverse === "function" &&
-  typeof Int32Array.prototype.reverse === "function" &&
-  typeof Uint32Array.prototype.reverse === "function" &&
-  typeof Float32Array.prototype.reverse === "function" &&
-  typeof Float64Array.prototype.reverse === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.slice.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.slice.js
deleted file mode 100644
index b7a9b76d01..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.slice.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.slice === "function" &&
-  typeof Uint8Array.prototype.slice === "function" &&
-  typeof Uint8ClampedArray.prototype.slice === "function" &&
-  typeof Int16Array.prototype.slice === "function" &&
-  typeof Uint16Array.prototype.slice === "function" &&
-  typeof Int32Array.prototype.slice === "function" &&
-  typeof Uint32Array.prototype.slice === "function" &&
-  typeof Float32Array.prototype.slice === "function" &&
-  typeof Float64Array.prototype.slice === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.some.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.some.js
deleted file mode 100644
index bfbb141455..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.some.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.some === "function" &&
-  typeof Uint8Array.prototype.some === "function" &&
-  typeof Uint8ClampedArray.prototype.some === "function" &&
-  typeof Int16Array.prototype.some === "function" &&
-  typeof Uint16Array.prototype.some === "function" &&
-  typeof Int32Array.prototype.some === "function" &&
-  typeof Uint32Array.prototype.some === "function" &&
-  typeof Float32Array.prototype.some === "function" &&
-  typeof Float64Array.prototype.some === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.sort.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.sort.js
deleted file mode 100644
index bb4feb6419..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.sort.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.sort === "function" &&
-  typeof Uint8Array.prototype.sort === "function" &&
-  typeof Uint8ClampedArray.prototype.sort === "function" &&
-  typeof Int16Array.prototype.sort === "function" &&
-  typeof Uint16Array.prototype.sort === "function" &&
-  typeof Int32Array.prototype.sort === "function" &&
-  typeof Uint32Array.prototype.sort === "function" &&
-  typeof Float32Array.prototype.sort === "function" &&
-  typeof Float64Array.prototype.sort === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.subarray.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.subarray.js
deleted file mode 100644
index ca7a65c11d..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.subarray.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.subarray === "function" &&
-  typeof Uint8Array.prototype.subarray === "function" &&
-  typeof Uint8ClampedArray.prototype.subarray === "function" &&
-  typeof Int16Array.prototype.subarray === "function" &&
-  typeof Uint16Array.prototype.subarray === "function" &&
-  typeof Int32Array.prototype.subarray === "function" &&
-  typeof Uint32Array.prototype.subarray === "function" &&
-  typeof Float32Array.prototype.subarray === "function" &&
-  typeof Float64Array.prototype.subarray === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.values.js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.values.js
deleted file mode 100644
index 862e97fadc..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype.values.js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype.values === "function" &&
-  typeof Uint8Array.prototype.values === "function" &&
-  typeof Uint8ClampedArray.prototype.values === "function" &&
-  typeof Int16Array.prototype.values === "function" &&
-  typeof Uint16Array.prototype.values === "function" &&
-  typeof Int32Array.prototype.values === "function" &&
-  typeof Uint32Array.prototype.values === "function" &&
-  typeof Float32Array.prototype.values === "function" &&
-  typeof Float64Array.prototype.values === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype[Symbol.iterator].js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype[Symbol.iterator].js
deleted file mode 100644
index 50037adf59..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%.prototype[Symbol.iterator].js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array.prototype[Symbol.iterator] === "function" &&
-  typeof Uint8Array.prototype[Symbol.iterator] === "function" &&
-  typeof Uint8ClampedArray.prototype[Symbol.iterator] === "function" &&
-  typeof Int16Array.prototype[Symbol.iterator] === "function" &&
-  typeof Uint16Array.prototype[Symbol.iterator] === "function" &&
-  typeof Int32Array.prototype[Symbol.iterator] === "function" &&
-  typeof Uint32Array.prototype[Symbol.iterator] === "function" &&
-  typeof Float32Array.prototype[Symbol.iterator] === "function" &&
-  typeof Float64Array.prototype[Symbol.iterator] === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%[Symbol.species].js b/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%[Symbol.species].js
deleted file mode 100644
index 58e99d746c..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_%TypedArray%[Symbol.species].js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-return typeof Int8Array[Symbol.species] === "function" &&
-  typeof Uint8Array[Symbol.species] === "function" &&
-  typeof Uint8ClampedArray[Symbol.species] === "function" &&
-  typeof Int16Array[Symbol.species] === "function" &&
-  typeof Uint16Array[Symbol.species] === "function" &&
-  typeof Int32Array[Symbol.species] === "function" &&
-  typeof Uint32Array[Symbol.species] === "function" &&
-  typeof Float32Array[Symbol.species] === "function" &&
-  typeof Float64Array[Symbol.species] === "function";
-
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_ArrayBuffer[Symbol.species].js b/implementation-contributed/javascriptcore/es6/typed_arrays_ArrayBuffer[Symbol.species].js
deleted file mode 100644
index e8e524e75c..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_ArrayBuffer[Symbol.species].js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return typeof ArrayBuffer[Symbol.species] === 'function';
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Float32.js b/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Float32.js
deleted file mode 100644
index 26fcefd29b..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Float32.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new DataView(buffer);
-view.setFloat32(0, 0.1);
-return view.getFloat32(0) === 0.10000000149011612;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Float64.js b/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Float64.js
deleted file mode 100644
index 2cc2606d17..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Float64.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new DataView(buffer);
-view.setFloat64(0, 0.1);
-return view.getFloat64(0) === 0.1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int16.js b/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int16.js
deleted file mode 100644
index cc795df212..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int16.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new DataView(buffer);
-view.setInt16(0, 0x8000);
-return view.getInt16(0) === -0x8000;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int32.js b/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int32.js
deleted file mode 100644
index 98a65398ff..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int32.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new DataView(buffer);
-view.setInt32(0, 0x80000000);
-return view.getInt32(0) === -0x80000000;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int8.js b/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int8.js
deleted file mode 100644
index c4ad9c90ce..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Int8.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new DataView(buffer);
-view.setInt8 (0, 0x80);
-return view.getInt8(0) === -0x80;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint16.js b/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint16.js
deleted file mode 100644
index 809fafa668..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint16.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new DataView(buffer);
-view.setUint16(0, 0x10000);
-return view.getUint16(0) === 0;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint32.js b/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint32.js
deleted file mode 100644
index fc77f107c1..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint32.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new DataView(buffer);
-view.setUint32(0, 0x100000000);
-return view.getUint32(0) === 0;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint8.js b/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint8.js
deleted file mode 100644
index 71f18bb44c..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_DataView_Uint8.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new DataView(buffer);
-view.setUint8(0, 0x100);
-return view.getUint8(0) === 0;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Float32Array.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Float32Array.js
deleted file mode 100644
index 2b507b35ab..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Float32Array.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Float32Array(buffer);       view[0] = 0.1;
-return view[0] === 0.10000000149011612;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Float64Array.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Float64Array.js
deleted file mode 100644
index 30df5eba74..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Float64Array.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Float64Array(buffer);       view[0] = 0.1;
-return view[0] === 0.1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Int16Array.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Int16Array.js
deleted file mode 100644
index db01397000..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Int16Array.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Int16Array(buffer);        view[0] = 0x8000;
-return view[0] === -0x8000;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Int32Array.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Int32Array.js
deleted file mode 100644
index 3bc661264f..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Int32Array.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Int32Array(buffer);        view[0] = 0x80000000;
-return view[0] === -0x80000000;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Int8Array.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Int8Array.js
deleted file mode 100644
index d7e08b11b6..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Int8Array.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Int8Array(buffer);         view[0] = 0x80;
-return view[0] === -0x80;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Uint16Array.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Uint16Array.js
deleted file mode 100644
index d9b63d8d2a..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Uint16Array.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Uint16Array(buffer);       view[0] = 0x10000;
-return view[0] === 0;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Uint32Array.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Uint32Array.js
deleted file mode 100644
index 02f24f71b8..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Uint32Array.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Uint32Array(buffer);       view[0] = 0x100000000;
-return view[0] === 0;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Uint8Array.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Uint8Array.js
deleted file mode 100644
index 3aceb3a713..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Uint8Array.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Uint8Array(buffer);        view[0] = 0x100;
-return view[0] === 0;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_Uint8ClampedArray.js b/implementation-contributed/javascriptcore/es6/typed_arrays_Uint8ClampedArray.js
deleted file mode 100644
index cd2e60a6f1..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_Uint8ClampedArray.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var view = new Uint8ClampedArray(buffer); view[0] = 0x100;
-return view[0] === 0xFF;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_constructors_require_new.js b/implementation-contributed/javascriptcore/es6/typed_arrays_constructors_require_new.js
deleted file mode 100644
index 5813bf6d55..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_constructors_require_new.js
+++ /dev/null
@@ -1,32 +0,0 @@
-function test() {
-
-var buffer = new ArrayBuffer(64);
-var constructors = [
-  'ArrayBuffer',
-  'DataView',
-  'Int8Array',
-  'Uint8Array',
-  'Uint8ClampedArray',
-  'Int16Array',
-  'Uint16Array',
-  'Int32Array',
-  'Uint32Array',
-  'Float32Array',
-  'Float64Array'
-];
-for(var i = 0; i < constructors.length; i+=1) {
-  try {
-    if (constructors[i] in global) {
-      global[constructors[i]](constructors[i] === "ArrayBuffer" ? 64 : buffer);
-    }
-    return false;
-  } catch(e) {
-  }
-}
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/typed_arrays_correct_prototype_chains.js b/implementation-contributed/javascriptcore/es6/typed_arrays_correct_prototype_chains.js
deleted file mode 100644
index 79c99c4953..0000000000
--- a/implementation-contributed/javascriptcore/es6/typed_arrays_correct_prototype_chains.js
+++ /dev/null
@@ -1,31 +0,0 @@
-function test() {
-
-var constructors = [
-  'Int8Array',
-  'Uint8Array',
-  'Uint8ClampedArray',
-  'Int16Array',
-  'Uint16Array',
-  'Int32Array',
-  'Uint32Array',
-  'Float32Array',
-  'Float64Array'
-];
-var constructor = Object.getPrototypeOf(Int8Array);
-var prototype = Object.getPrototypeOf(Int8Array.prototype);
-for(var i = 0; i < constructors.length; i+=1) {
-  if (!(constructors[i] in global
-      && Object.getPrototypeOf(global[constructors[i]]) === constructor
-      && Object.getPrototypeOf(global[constructors[i]].prototype) === prototype
-      && Object.getOwnPropertyNames(global[constructors[i]].prototype).sort() + ''
-        === "BYTES_PER_ELEMENT,constructor")) {
-    return false;
-  }
-}
-return true;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.hasInstance.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.hasInstance.js
deleted file mode 100644
index 45e42e044c..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.hasInstance.js
+++ /dev/null
@@ -1,16 +0,0 @@
-function test() {
-
-var passed = false;
-var obj = { foo: true };
-var C = function(){};
-Object.defineProperty(C, Symbol.hasInstance, {
-  value: function(inst) { passed = inst.foo; return false; }
-});
-obj instanceof C;
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.isConcatSpreadable.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.isConcatSpreadable.js
deleted file mode 100644
index cf9f6714d3..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.isConcatSpreadable.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-var a = [], b = [];
-b[Symbol.isConcatSpreadable] = false;
-a = a.concat(b);
-return a[0] === b;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.iterator_arguments_object.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.iterator_arguments_object.js
deleted file mode 100644
index 813dabbed0..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.iterator_arguments_object.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-
-return (function() {
-  return typeof arguments[Symbol.iterator] === 'function'
-    && Object.hasOwnProperty.call(arguments, Symbol.iterator);
-}());
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.iterator_existence.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.iterator_existence.js
deleted file mode 100644
index 5511073849..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.iterator_existence.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return "iterator" in Symbol;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match.js
deleted file mode 100644
index 7e4fdf5fee..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var O = {};
-O[Symbol.match] = function(){
-  return 42;
-};
-return ''.match(O) === 42;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.endsWith.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.endsWith.js
deleted file mode 100644
index a63b1846d4..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.endsWith.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-    var re = /./;
-    try {
-        '/./'.endsWith(re);
-    } catch(e){
-        re[Symbol.match] = false;
-        return '/./'.endsWith(re);
-    }
-}
-
-if (!test())
-    throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.includes.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.includes.js
deleted file mode 100644
index 9e14d37afe..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.includes.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-    var re = /./;
-    try {
-        '/./'.includes(re);
-    } catch(e){
-        re[Symbol.match] = false;
-        return '/./'.includes(re);
-    }
-}
-
-if (!test())
-    throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.startsWith.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.startsWith.js
deleted file mode 100644
index cec7f1c191..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.match_String.prototype.startsWith.js
+++ /dev/null
@@ -1,12 +0,0 @@
-function test() {
-    var re = /./;
-    try {
-        '/./'.startsWith(re);
-    } catch(e){
-        re[Symbol.match] = false;
-        return '/./'.startsWith(re);
-    }
-}
-
-if (!test())
-    throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.replace.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.replace.js
deleted file mode 100644
index 89182ed70d..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.replace.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var O = {};
-O[Symbol.replace] = function(){
-  return 42;
-};
-return ''.replace(O) === 42;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.search.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.search.js
deleted file mode 100644
index 1c85a7e208..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.search.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var O = {};
-O[Symbol.search] = function(){
-  return 42;
-};
-return ''.search(O) === 42;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.concat.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.concat.js
deleted file mode 100644
index 5997eecc51..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.concat.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var obj = [];
-obj.constructor = {};
-obj.constructor[Symbol.species] = function() {
-    return { foo: 1 };
-};
-return Array.prototype.concat.call(obj, []).foo === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.filter.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.filter.js
deleted file mode 100644
index 3d8e0cafa2..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.filter.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var obj = [];
-obj.constructor = {};
-obj.constructor[Symbol.species] = function() {
-    return { foo: 1 };
-};
-return Array.prototype.filter.call(obj, Boolean).foo === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.map.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.map.js
deleted file mode 100644
index 45479e58de..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.map.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var obj = [];
-obj.constructor = {};
-obj.constructor[Symbol.species] = function() {
-    return { foo: 1 };
-};
-return Array.prototype.map.call(obj, Boolean).foo === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.slice.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.slice.js
deleted file mode 100644
index fe90717247..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.slice.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var obj = [];
-obj.constructor = {};
-obj.constructor[Symbol.species] = function() {
-    return { foo: 1 };
-};
-return Array.prototype.slice.call(obj, 0).foo === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.splice.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.splice.js
deleted file mode 100644
index 3920b0c49a..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_Array.prototype.splice.js
+++ /dev/null
@@ -1,14 +0,0 @@
-function test() {
-
-var obj = [];
-obj.constructor = {};
-obj.constructor[Symbol.species] = function() {
-    return { foo: 1 };
-};
-return Array.prototype.splice.call(obj, 0).foo === 1;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_RegExp.prototype[Symbol.split].js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_RegExp.prototype[Symbol.split].js
deleted file mode 100644
index 463c639a57..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_RegExp.prototype[Symbol.split].js
+++ /dev/null
@@ -1,17 +0,0 @@
-function test() {
-
-var passed = false;
-var obj = { constructor: {} };
-obj[Symbol.split] = RegExp.prototype[Symbol.split];
-obj.constructor[Symbol.species] = function() {
-  passed = true;
-  return /./;
-};
-"".split(obj);
-return passed;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_existence.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_existence.js
deleted file mode 100644
index 21abeafc2e..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.species_existence.js
+++ /dev/null
@@ -1,9 +0,0 @@
-function test() {
-
-return "species" in Symbol;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.split.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.split.js
deleted file mode 100644
index e57cb3d7bb..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.split.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var O = {};
-O[Symbol.split] = function(){
-  return 42;
-};
-return ''.split(O) === 42;
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toPrimitive.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toPrimitive.js
index 7914b26519..1dc2313048 100644
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toPrimitive.js
+++ b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toPrimitive.js
@@ -1,3 +1,4 @@
+// Reviewed
 function test() {
 
 var a = {}, b = {}, c = {};
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag.js
deleted file mode 100644
index 7d9777d0e4..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var a = {};
-a[Symbol.toStringTag] = "foo";
-return (a + "") === "[object foo]";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag_misc._built-ins.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag_misc._built-ins.js
deleted file mode 100644
index c05320f6be..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag_misc._built-ins.js
+++ /dev/null
@@ -1,11 +0,0 @@
-function test() {
-
-var s = Symbol.toStringTag;
-return Math[s] === "Math"
-  && JSON[s] === "JSON";
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag_new_built-ins.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag_new_built-ins.js
deleted file mode 100644
index 691d56226d..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.toStringTag_new_built-ins.js
+++ /dev/null
@@ -1,32 +0,0 @@
-function test() {
-
-var passed = true;
-var s = Symbol.toStringTag;
-[
-  [String, "String Iterator"],
-  [Array, "Array Iterator"],
-  [Map, "Map Iterator"],
-  [Set, "Set Iterator"]
-].forEach(function(pair){
-  var iterProto = Object.getPrototypeOf(new pair[0]()[Symbol.iterator]());
-  passed = passed
-    && iterProto.hasOwnProperty(s)
-    && iterProto[s] === pair[1];
-});
-
-passed = passed
-  && Object.getPrototypeOf(function*(){})[s] === "GeneratorFunction"
-  && Object.getPrototypeOf(function*(){}())[s] === "Generator"
-  && Map.prototype[s] === "Map"
-  && Set.prototype[s] === "Set"
-  && ArrayBuffer.prototype[s] === "ArrayBuffer"
-  && DataView.prototype[s] === "DataView"
-  && Promise.prototype[s] === "Promise"
-  && Symbol.prototype[s] === "Symbol"
-  && typeof Object.getOwnPropertyDescriptor(
-    Object.getPrototypeOf(Int8Array).prototype, Symbol.toStringTag).get === "function";
-  return passed;
-}
-
-if (!test())
-    throw new Error("Test failed");
diff --git a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.unscopables.js b/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.unscopables.js
deleted file mode 100644
index eee68e97fc..0000000000
--- a/implementation-contributed/javascriptcore/es6/well-known_symbols_Symbol.unscopables.js
+++ /dev/null
@@ -1,13 +0,0 @@
-function test() {
-
-var a = { foo: 1, bar: 2 };
-a[Symbol.unscopables] = { bar: true };
-with (a) {
-  return foo === 1 && typeof bar === "undefined";
-}
-      
-}
-
-if (!test())
-    throw new Error("Test failed");
-