Install iterator meta objects via utils object.

src/js/array-iterator.js

Index: src/js/array-iterator.js
diff --git a/src/js/array-iterator.js b/src/js/array-iterator.js
index 11b07db80676f9fc3704f297601a214987839521..03ef3b2870c38c726576bd92acc4caccfe31fe7d 100644
--- a/src/js/array-iterator.js
+++ b/src/js/array-iterator.js
@@ -18,6 +18,7 @@ var arrayIteratorNextIndexSymbol =
 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");
 
@@ -121,7 +122,7 @@ function ArrayKeys() {
 }
 
 
-%FunctionSetPrototype(ArrayIterator, {__proto__: $iteratorPrototype});
+%FunctionSetPrototype(ArrayIterator, {__proto__: IteratorPrototype});
 %FunctionSetInstanceClassName(ArrayIterator, 'Array Iterator');
 
 utils.InstallFunctions(ArrayIterator.prototype, DONT_ENUM, [