Merge pull request #1205 from anba/class-fields-fixes

Misc. class fields fixes

src/class-fields/computed-names.case

@@ -63,7 +63,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

src/class-fields/default/cls-decl-after-same-line-async-gen.template

@@ -21,10 +21,11 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 /*{ assertions }*/
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

src/class-fields/default/cls-decl-after-same-line-async-method.template

@@ -21,7 +21,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 /*{ assertions }*/
 

src/class-fields/default/cls-decl-after-same-line-static-async-gen.template

@@ -21,10 +21,11 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 /*{ assertions }*/
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

src/class-fields/default/cls-decl-after-same-line-static-async-method.template

@@ -21,7 +21,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 /*{ assertions }*/
 

src/class-fields/default/cls-decl-multiple-definitions.template

@@ -43,7 +43,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -54,7 +54,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

src/class-fields/default/cls-decl-multiple-stacked-definitions.template

@@ -15,17 +15,13 @@ class C {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -36,7 +32,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

src/class-fields/default/cls-decl-new-sc-line-generator.template

@@ -14,7 +14,7 @@ class C {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 

src/class-fields/default/cls-expr-after-same-line-async-gen.template

@@ -21,10 +21,11 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 /*{ assertions }*/
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

src/class-fields/default/cls-expr-after-same-line-async-method.template

@@ -21,7 +21,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 /*{ assertions }*/
 

src/class-fields/default/cls-expr-after-same-line-static-async-gen.template

@@ -21,10 +21,11 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 /*{ assertions }*/
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

src/class-fields/default/cls-expr-after-same-line-static-async-method.template

@@ -21,7 +21,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 /*{ assertions }*/
 

src/class-fields/default/cls-expr-multiple-definitions.template

@@ -43,7 +43,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -54,7 +54,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

src/class-fields/default/cls-expr-multiple-stacked-definitions.template

@@ -15,17 +15,13 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -36,7 +32,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

src/class-fields/default/cls-expr-new-sc-line-generator.template

@@ -14,7 +14,7 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 

src/class-fields/string-literal-names.case

@@ -26,6 +26,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-after-same-line-gen-computed-names.js

@@ -76,7 +76,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-after-same-line-gen-string-literal-names.js

@@ -41,6 +41,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-after-same-line-method-computed-names.js

@@ -76,7 +76,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-after-same-line-method-string-literal-names.js

@@ -41,6 +41,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-after-same-line-static-async-gen-computed-names.js

@@ -35,7 +35,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -75,12 +75,13 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true
 });
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-after-same-line-static-async-gen-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);
@@ -67,5 +67,6 @@ assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-after-same-line-static-async-gen-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
@@ -70,5 +70,6 @@ verifyProperty(c, "c", {
 
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-after-same-line-static-async-gen-static-computed-names.js

@@ -34,7 +34,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 
@@ -53,5 +53,6 @@ verifyProperty(c, "a", {
 });
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-after-same-line-static-async-gen-static-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);
@@ -67,5 +67,6 @@ assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-after-same-line-static-async-gen-static-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -70,5 +70,6 @@ verifyProperty(C, "c", {
 
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-after-same-line-static-async-gen-string-literal-names.js

@@ -34,12 +34,42 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,
@@ -47,5 +77,6 @@ verifyProperty(c, "a", {
 });
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-after-same-line-static-async-method-computed-names.js

@@ -35,7 +35,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -75,7 +75,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-after-same-line-static-async-method-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);

test/language/expressions/class/fields-after-same-line-static-async-method-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);

test/language/expressions/class/fields-after-same-line-static-async-method-static-computed-names.js

@@ -34,7 +34,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 

test/language/expressions/class/fields-after-same-line-static-async-method-static-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);

test/language/expressions/class/fields-after-same-line-static-async-method-static-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);

test/language/expressions/class/fields-after-same-line-static-async-method-string-literal-names.js

@@ -34,12 +34,42 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-after-same-line-static-gen-computed-names.js

@@ -76,7 +76,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-after-same-line-static-gen-string-literal-names.js

@@ -41,6 +41,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-after-same-line-static-method-computed-names.js

@@ -76,7 +76,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-after-same-line-static-method-string-literal-names.js

@@ -41,6 +41,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-multiple-definitions-computed-names.js

@@ -58,7 +58,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -69,7 +69,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -112,7 +112,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-multiple-definitions-computed-symbol-names.js

@@ -59,7 +59,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -70,7 +70,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-definitions-literal-names.js

@@ -59,7 +59,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -70,7 +70,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-definitions-static-computed-names.js

@@ -57,7 +57,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -68,7 +68,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-definitions-static-computed-symbol-names.js

@@ -59,7 +59,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -70,7 +70,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-definitions-static-literal-names.js

@@ -59,7 +59,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -70,7 +70,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-definitions-string-literal-names.js

@@ -57,7 +57,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -68,7 +68,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -77,6 +77,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-multiple-stacked-definitions-computed-names.js

@@ -30,17 +30,13 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -51,7 +47,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -94,7 +90,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-multiple-stacked-definitions-computed-symbol-names.js

@@ -31,17 +31,13 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -52,7 +48,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-stacked-definitions-literal-names.js

@@ -31,17 +31,13 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -52,7 +48,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-stacked-definitions-static-computed-names.js

@@ -29,17 +29,13 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -50,7 +46,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-stacked-definitions-static-computed-symbol-names.js

@@ -31,17 +31,13 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -52,7 +48,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-stacked-definitions-static-literal-names.js

@@ -31,17 +31,13 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -52,7 +48,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });

test/language/expressions/class/fields-multiple-stacked-definitions-string-literal-names.js

@@ -29,17 +29,13 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.m(), 42);
-assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
-assert.sameValue(c.m, C.prototype.m);
-
 assert.sameValue(c.foo, "foobar");
 assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
 
 verifyProperty(c, "foo", {
   value: "foobar",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -50,7 +46,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
 
 verifyProperty(c, "bar", {
   value: "barbaz",
-  enumerable: false,
+  enumerable: true,
   configurable: true,
   writable: true,
 });
@@ -59,6 +55,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-new-no-sc-line-method-computed-names.js

@@ -77,7 +77,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-new-no-sc-line-method-string-literal-names.js

@@ -42,6 +42,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-new-sc-line-gen-computed-names.js

@@ -29,7 +29,7 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 
@@ -77,7 +77,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-new-sc-line-gen-computed-symbol-names.js

@@ -30,7 +30,7 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 

test/language/expressions/class/fields-new-sc-line-gen-literal-names.js

@@ -30,7 +30,7 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 

test/language/expressions/class/fields-new-sc-line-gen-static-computed-names.js

@@ -28,7 +28,7 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 

test/language/expressions/class/fields-new-sc-line-gen-static-computed-symbol-names.js

@@ -30,7 +30,7 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 

test/language/expressions/class/fields-new-sc-line-gen-static-literal-names.js

@@ -30,7 +30,7 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 

test/language/expressions/class/fields-new-sc-line-gen-string-literal-names.js

@@ -28,7 +28,7 @@ var C = class {
 
 var c = new C();
 
-assert.sameValue(c.g().next().value, 42);
+assert.sameValue(c.m().next().value, 42);
 assert.sameValue(c.m, C.prototype.m);
 assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
 
@@ -42,6 +42,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-new-sc-line-method-computed-names.js

@@ -77,7 +77,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-new-sc-line-method-string-literal-names.js

@@ -42,6 +42,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-regular-definitions-computed-names.js

@@ -66,7 +66,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-regular-definitions-string-literal-names.js

@@ -31,6 +31,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-same-line-async-gen-computed-names.js

@@ -35,7 +35,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -75,12 +75,13 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true
 });
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-same-line-async-gen-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);
@@ -67,5 +67,6 @@ assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-same-line-async-gen-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
@@ -70,5 +70,6 @@ verifyProperty(c, "c", {
 
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-same-line-async-gen-static-computed-names.js

@@ -34,7 +34,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 
@@ -53,5 +53,6 @@ verifyProperty(c, "a", {
 });
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-same-line-async-gen-static-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);
@@ -67,5 +67,6 @@ assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-same-line-async-gen-static-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -70,5 +70,6 @@ verifyProperty(C, "c", {
 
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-same-line-async-gen-string-literal-names.js

@@ -34,12 +34,42 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,
@@ -47,5 +77,6 @@ verifyProperty(c, "a", {
 });
 
 c.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/expressions/class/fields-same-line-async-method-computed-names.js

@@ -35,7 +35,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -75,7 +75,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-same-line-async-method-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);

test/language/expressions/class/fields-same-line-async-method-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);

test/language/expressions/class/fields-same-line-async-method-static-computed-names.js

@@ -34,7 +34,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 

test/language/expressions/class/fields-same-line-async-method-static-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);

test/language/expressions/class/fields-same-line-async-method-static-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);

test/language/expressions/class/fields-same-line-async-method-string-literal-names.js

@@ -34,12 +34,42 @@ verifyProperty(C.prototype, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-same-line-gen-computed-names.js

@@ -76,7 +76,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-same-line-gen-string-literal-names.js

@@ -41,6 +41,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-same-line-method-computed-names.js

@@ -76,7 +76,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-same-line-method-string-literal-names.js

@@ -41,6 +41,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/expressions/class/fields-wrapped-in-sc-computed-names.js

@@ -68,7 +68,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/expressions/class/fields-wrapped-in-sc-string-literal-names.js

@@ -33,6 +33,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/statements/class/fields-after-same-line-gen-computed-names.js

@@ -76,7 +76,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/statements/class/fields-after-same-line-gen-string-literal-names.js

@@ -41,6 +41,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/statements/class/fields-after-same-line-method-computed-names.js

@@ -76,7 +76,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/statements/class/fields-after-same-line-method-string-literal-names.js

@@ -41,6 +41,36 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,

test/language/statements/class/fields-after-same-line-static-async-gen-computed-names.js

@@ -35,7 +35,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -75,12 +75,13 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true
 });
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/statements/class/fields-after-same-line-static-async-gen-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);
@@ -67,5 +67,6 @@ assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/statements/class/fields-after-same-line-static-async-gen-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
@@ -70,5 +70,6 @@ verifyProperty(c, "c", {
 
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/statements/class/fields-after-same-line-static-async-gen-static-computed-names.js

@@ -34,7 +34,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 
@@ -53,5 +53,6 @@ verifyProperty(c, "a", {
 });
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/statements/class/fields-after-same-line-static-async-gen-static-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);
@@ -67,5 +67,6 @@ assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/statements/class/fields-after-same-line-static-async-gen-static-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -70,5 +70,6 @@ verifyProperty(C, "c", {
 
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/statements/class/fields-after-same-line-static-async-gen-string-literal-names.js

@@ -34,12 +34,42 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
 
 verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
   value: 42,
   enumerable: true,
   writable: true,
@@ -47,5 +77,6 @@ verifyProperty(c, "a", {
 });
 
 C.m().next().then(function(v) {
-  assert.sameValue(v, 42);
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
 }, $DONE).then($DONE, $DONE);

test/language/statements/class/fields-after-same-line-static-async-method-computed-names.js

@@ -35,7 +35,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(c, "a"), false);
@@ -75,7 +75,7 @@ assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), fal
 assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
 
 verifyProperty(c, "not initialized", {
-  value: "meep",
+  value: undefined,
   enumerable: true,
   writable: true,
   configurable: true

test/language/statements/class/fields-after-same-line-static-async-method-computed-symbol-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
 assert.sameValue(Object.hasOwnProperty.call(C, x), false);

test/language/statements/class/fields-after-same-line-static-async-method-literal-names.js

@@ -36,7 +36,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
 assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);

test/language/statements/class/fields-after-same-line-static-async-method-static-computed-names.js

@@ -34,7 +34,7 @@ verifyProperty(C, "m", {
   enumerable: false,
   configurable: true,
   writable: true,
-});
+}, {restore: true});
 
 assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);