Use ES2015-style TypedArray prototype chain

test/mjsunit/es6/typed-array-iterator.js

Index: test/mjsunit/es6/typed-array-iterator.js
diff --git a/test/mjsunit/es6/typed-array-iterator.js b/test/mjsunit/es6/typed-array-iterator.js
index 9903b0abaee75cb4cda98b246d5899f9d50450b0..0b27625c5c3ab0d1c6e1ad37f037eda6053baeda 100644
--- a/test/mjsunit/es6/typed-array-iterator.js
+++ b/test/mjsunit/es6/typed-array-iterator.js
@@ -9,23 +9,22 @@ var constructors = [Uint8Array, Int8Array,
                     Float32Array, Float64Array,
                     Uint8ClampedArray];
 
-function TestTypedArrayPrototype(constructor) {
-  assertTrue(constructor.prototype.hasOwnProperty('entries'));
-  assertTrue(constructor.prototype.hasOwnProperty('values'));
-  assertTrue(constructor.prototype.hasOwnProperty('keys'));
-  assertTrue(constructor.prototype.hasOwnProperty(Symbol.iterator));
-
-  assertFalse(constructor.prototype.propertyIsEnumerable('entries'));
-  assertFalse(constructor.prototype.propertyIsEnumerable('values'));
-  assertFalse(constructor.prototype.propertyIsEnumerable('keys'));
-  assertFalse(constructor.prototype.propertyIsEnumerable(Symbol.iterator));
-
-  assertEquals(Array.prototype.entries, constructor.prototype.entries);
-  assertEquals(Array.prototype[Symbol.iterator], constructor.prototype.values);
-  assertEquals(Array.prototype.keys, constructor.prototype.keys);
-  assertEquals(Array.prototype[Symbol.iterator], constructor.prototype[Symbol.iterator]);
-}
-constructors.forEach(TestTypedArrayPrototype);
+var TypedArrayPrototype = Uint8Array.prototype.__proto__;
+
+assertTrue(TypedArrayPrototype.hasOwnProperty('entries'));
+assertTrue(TypedArrayPrototype.hasOwnProperty('values'));
+assertTrue(TypedArrayPrototype.hasOwnProperty('keys'));
+assertTrue(TypedArrayPrototype.hasOwnProperty(Symbol.iterator));
+
+assertFalse(TypedArrayPrototype.propertyIsEnumerable('entries'));
+assertFalse(TypedArrayPrototype.propertyIsEnumerable('values'));
+assertFalse(TypedArrayPrototype.propertyIsEnumerable('keys'));
+assertFalse(TypedArrayPrototype.propertyIsEnumerable(Symbol.iterator));
+
+assertEquals(Array.prototype.entries, TypedArrayPrototype.entries);
+assertEquals(Array.prototype[Symbol.iterator], TypedArrayPrototype.values);
+assertEquals(Array.prototype.keys, TypedArrayPrototype.keys);
+assertEquals(Array.prototype[Symbol.iterator], TypedArrayPrototype[Symbol.iterator]);
 
 
 function TestTypedArrayValues(constructor) {