Install iterator meta objects via utils object.

src/js/array-iterator.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function(global, utils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
 // -----------------------------------------------------------------------
 // Imports
 
 var arrayIterationKindSymbol =
     utils.ImportNow("array_iteration_kind_symbol");
 var arrayIteratorNextIndexSymbol =
     utils.ImportNow("array_iterator_next_symbol");
 var arrayIteratorObjectSymbol =
     utils.ImportNow("array_iterator_object_symbol");
 var GlobalArray = global.Array;
+var IteratorPrototype = utils.ImportNow("IteratorPrototype");
 var iteratorSymbol = utils.ImportNow("iterator_symbol");
 var toStringTagSymbol = utils.ImportNow("to_string_tag_symbol");
 
 macro TYPED_ARRAYS(FUNCTION)
   FUNCTION(Uint8Array)
   FUNCTION(Int8Array)
   FUNCTION(Uint16Array)
   FUNCTION(Int16Array)
   FUNCTION(Uint32Array)
   FUNCTION(Int32Array)
@@ skipping 83 matching lines @@
 function ArrayValues() {
   return CreateArrayIterator(this, ITERATOR_KIND_VALUES);
 }
 
 
 function ArrayKeys() {
   return CreateArrayIterator(this, ITERATOR_KIND_KEYS);
 }
 
 
-%FunctionSetPrototype(ArrayIterator, {__proto__: $iteratorPrototype});
+%FunctionSetPrototype(ArrayIterator, {__proto__: IteratorPrototype});
 %FunctionSetInstanceClassName(ArrayIterator, 'Array Iterator');
 
 utils.InstallFunctions(ArrayIterator.prototype, DONT_ENUM, [
   'next', ArrayIteratorNext
 ]);
 utils.SetFunctionName(ArrayIteratorIterator, iteratorSymbol);
 %AddNamedProperty(ArrayIterator.prototype, iteratorSymbol,
                   ArrayIteratorIterator, DONT_ENUM);
 %AddNamedProperty(ArrayIterator.prototype, toStringTagSymbol,
                   "Array Iterator", READ_ONLY | DONT_ENUM);
@@ skipping 28 matching lines @@
   to.ArrayValues = ArrayValues;
 });
 
 %InstallToContext([
   "array_keys_iterator", ArrayKeys,
   "array_values_iterator", ArrayValues,
   "array_entries_iterator", ArrayEntries
 ]);
 
 })