diff --git a/test/harness/isConstructor.js b/test/harness/isConstructor.js
index cc3a134997..11bda9b3b5 100644
--- a/test/harness/isConstructor.js
+++ b/test/harness/isConstructor.js
@@ -8,6 +8,7 @@ description: >
       isConstructor
 
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(typeof isConstructor, "function");
diff --git a/test/intl402/Collator/prototype/compare/builtin.js b/test/intl402/Collator/prototype/compare/builtin.js
index ab12bd28d4..6860cb25a4 100644
--- a/test/intl402/Collator/prototype/compare/builtin.js
+++ b/test/intl402/Collator/prototype/compare/builtin.js
@@ -9,6 +9,7 @@ description: >
     of chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 var compareFn = Object.getOwnPropertyDescriptor(Intl.Collator.prototype, "compare").get;
diff --git a/test/intl402/Collator/prototype/compare/compare-function-builtin.js b/test/intl402/Collator/prototype/compare/compare-function-builtin.js
index 0d40250aff..59322861af 100644
--- a/test/intl402/Collator/prototype/compare/compare-function-builtin.js
+++ b/test/intl402/Collator/prototype/compare/compare-function-builtin.js
@@ -10,6 +10,7 @@ description: >
     ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 var compareFn = new Intl.Collator().compare;
diff --git a/test/intl402/Collator/prototype/resolvedOptions/builtin.js b/test/intl402/Collator/prototype/resolvedOptions/builtin.js
index cf83b0a628..e98c400665 100644
--- a/test/intl402/Collator/prototype/resolvedOptions/builtin.js
+++ b/test/intl402/Collator/prototype/resolvedOptions/builtin.js
@@ -9,6 +9,7 @@ description: >
     chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Intl.Collator.prototype.resolvedOptions), "[object Function]",
diff --git a/test/intl402/Collator/supportedLocalesOf/builtin.js b/test/intl402/Collator/supportedLocalesOf/builtin.js
index 8fc4a24d46..f88d5bc88d 100644
--- a/test/intl402/Collator/supportedLocalesOf/builtin.js
+++ b/test/intl402/Collator/supportedLocalesOf/builtin.js
@@ -9,6 +9,7 @@ description: >
     chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Intl.Collator.supportedLocalesOf), "[object Function]",
diff --git a/test/intl402/Date/prototype/toLocaleDateString/builtin.js b/test/intl402/Date/prototype/toLocaleDateString/builtin.js
index 70b8b9d796..421032bd81 100644
--- a/test/intl402/Date/prototype/toLocaleDateString/builtin.js
+++ b/test/intl402/Date/prototype/toLocaleDateString/builtin.js
@@ -9,6 +9,7 @@ description: >
     chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Date.prototype.toLocaleDateString), "[object Function]",
diff --git a/test/intl402/Date/prototype/toLocaleString/builtin.js b/test/intl402/Date/prototype/toLocaleString/builtin.js
index dde2899d21..fa66dd1bc1 100644
--- a/test/intl402/Date/prototype/toLocaleString/builtin.js
+++ b/test/intl402/Date/prototype/toLocaleString/builtin.js
@@ -9,6 +9,7 @@ description: >
     the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Date.prototype.toLocaleString), "[object Function]",
diff --git a/test/intl402/Date/prototype/toLocaleTimeString/builtin.js b/test/intl402/Date/prototype/toLocaleTimeString/builtin.js
index 5e61e709d2..bcbf24c8a5 100644
--- a/test/intl402/Date/prototype/toLocaleTimeString/builtin.js
+++ b/test/intl402/Date/prototype/toLocaleTimeString/builtin.js
@@ -9,6 +9,7 @@ description: >
     chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Date.prototype.toLocaleTimeString), "[object Function]",
diff --git a/test/intl402/DateTimeFormat/prototype/format/builtin.js b/test/intl402/DateTimeFormat/prototype/format/builtin.js
index f0862c45c1..6cae10f34c 100644
--- a/test/intl402/DateTimeFormat/prototype/format/builtin.js
+++ b/test/intl402/DateTimeFormat/prototype/format/builtin.js
@@ -10,6 +10,7 @@ description: >
     Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 var formatFn = Object.getOwnPropertyDescriptor(Intl.DateTimeFormat.prototype, "format").get;
diff --git a/test/intl402/DateTimeFormat/prototype/format/format-function-builtin.js b/test/intl402/DateTimeFormat/prototype/format/format-function-builtin.js
index 4fa4f3e6b0..0b93499a8b 100644
--- a/test/intl402/DateTimeFormat/prototype/format/format-function-builtin.js
+++ b/test/intl402/DateTimeFormat/prototype/format/format-function-builtin.js
@@ -10,6 +10,7 @@ description: >
     ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 var formatFn = new Intl.DateTimeFormat().format;
diff --git a/test/intl402/DateTimeFormat/prototype/resolvedOptions/builtin.js b/test/intl402/DateTimeFormat/prototype/resolvedOptions/builtin.js
index db4e3b9f5b..40c2265392 100644
--- a/test/intl402/DateTimeFormat/prototype/resolvedOptions/builtin.js
+++ b/test/intl402/DateTimeFormat/prototype/resolvedOptions/builtin.js
@@ -9,6 +9,7 @@ description: >
     of chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Intl.DateTimeFormat.prototype.resolvedOptions), "[object Function]",
diff --git a/test/intl402/DateTimeFormat/supportedLocalesOf/builtin.js b/test/intl402/DateTimeFormat/supportedLocalesOf/builtin.js
index d67b64bfca..1b1afa4cc3 100644
--- a/test/intl402/DateTimeFormat/supportedLocalesOf/builtin.js
+++ b/test/intl402/DateTimeFormat/supportedLocalesOf/builtin.js
@@ -9,6 +9,7 @@ description: >
     chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Intl.DateTimeFormat.supportedLocalesOf), "[object Function]",
diff --git a/test/intl402/Number/prototype/toLocaleString/builtin.js b/test/intl402/Number/prototype/toLocaleString/builtin.js
index 5e5ece0f17..1475b37631 100644
--- a/test/intl402/Number/prototype/toLocaleString/builtin.js
+++ b/test/intl402/Number/prototype/toLocaleString/builtin.js
@@ -9,6 +9,7 @@ description: >
     the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Number.prototype.toLocaleString), "[object Function]",
diff --git a/test/intl402/NumberFormat/prototype/format/builtin.js b/test/intl402/NumberFormat/prototype/format/builtin.js
index c89a62c6e5..aae1252c24 100644
--- a/test/intl402/NumberFormat/prototype/format/builtin.js
+++ b/test/intl402/NumberFormat/prototype/format/builtin.js
@@ -10,6 +10,7 @@ description: >
     Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 var formatFn = Object.getOwnPropertyDescriptor(Intl.NumberFormat.prototype, "format").get;
diff --git a/test/intl402/NumberFormat/prototype/format/format-function-builtin.js b/test/intl402/NumberFormat/prototype/format/format-function-builtin.js
index d7efa612a2..21e83777e5 100644
--- a/test/intl402/NumberFormat/prototype/format/format-function-builtin.js
+++ b/test/intl402/NumberFormat/prototype/format/format-function-builtin.js
@@ -10,6 +10,7 @@ description: >
     ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 var formatFn = new Intl.NumberFormat().format;
diff --git a/test/intl402/NumberFormat/prototype/resolvedOptions/builtin.js b/test/intl402/NumberFormat/prototype/resolvedOptions/builtin.js
index 02c99d7349..6ad6deae89 100644
--- a/test/intl402/NumberFormat/prototype/resolvedOptions/builtin.js
+++ b/test/intl402/NumberFormat/prototype/resolvedOptions/builtin.js
@@ -9,6 +9,7 @@ description: >
     chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Intl.NumberFormat.prototype.resolvedOptions), "[object Function]",
diff --git a/test/intl402/NumberFormat/supportedLocalesOf/builtin.js b/test/intl402/NumberFormat/supportedLocalesOf/builtin.js
index 64a3869eaa..51a0eebc39 100644
--- a/test/intl402/NumberFormat/supportedLocalesOf/builtin.js
+++ b/test/intl402/NumberFormat/supportedLocalesOf/builtin.js
@@ -9,6 +9,7 @@ description: >
     chapter 17 of the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Intl.NumberFormat.supportedLocalesOf), "[object Function]",
diff --git a/test/intl402/PluralRules/prototype/resolvedOptions/builtins.js b/test/intl402/PluralRules/prototype/resolvedOptions/builtins.js
index e25ff3caa7..48f81ca54b 100644
--- a/test/intl402/PluralRules/prototype/resolvedOptions/builtins.js
+++ b/test/intl402/PluralRules/prototype/resolvedOptions/builtins.js
@@ -9,6 +9,7 @@ description: >
     ECMAScript Language Specification.
 author: Zibi Braniecki
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Intl.PluralRules.prototype.resolvedOptions), "[object Function]",
diff --git a/test/intl402/PluralRules/supportedLocalesOf/supportedLocalesOf.js b/test/intl402/PluralRules/supportedLocalesOf/supportedLocalesOf.js
index ee6984f652..47e4d63cc8 100644
--- a/test/intl402/PluralRules/supportedLocalesOf/supportedLocalesOf.js
+++ b/test/intl402/PluralRules/supportedLocalesOf/supportedLocalesOf.js
@@ -9,6 +9,7 @@ description: >
     ECMAScript Language Specification.
 author: Zibi Braniecki
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(Intl.PluralRules.supportedLocalesOf), "[object Function]",
diff --git a/test/intl402/String/prototype/localeCompare/builtin.js b/test/intl402/String/prototype/localeCompare/builtin.js
index 67db4ed5a3..d25a55b53e 100644
--- a/test/intl402/String/prototype/localeCompare/builtin.js
+++ b/test/intl402/String/prototype/localeCompare/builtin.js
@@ -9,6 +9,7 @@ description: >
     the ECMAScript Language Specification.
 author: Norbert Lindenberg
 includes: [isConstructor.js]
+features: [Reflect.construct]
 ---*/
 
 assert.sameValue(Object.prototype.toString.call(String.prototype.localeCompare), "[object Function]",