Move error message makers off js builtins object.

src/js/object-observe.js

 // Copyright 2012 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 GetHash;
 var GlobalArray = global.Array;
 var GlobalObject = global.Object;
 var InternalArray = utils.InternalArray;
+var MakeTypeError;
 var ObjectFreeze;
 var ObjectIsFrozen;
 
 utils.Import(function(from) {
   GetHash = from.GetHash;
+  MakeTypeError = from.MakeTypeError;
   ObjectFreeze = from.ObjectFreeze;
   ObjectIsFrozen = from.ObjectIsFrozen;
 });
 
 // -------------------------------------------------------------------
 
 // Overview:
 //
 // This file contains all of the routing and accounting for Object.observe.
 // User code will interact with these mechanisms via the Object.observe APIs
@@ skipping 677 matching lines @@
 
 utils.Export(function(to) {
   to.ObserveArrayMethods = ObserveArrayMethods;
   to.ObserveBeginPerformSplice = BeginPerformSplice;
   to.ObserveEndPerformSplice = EndPerformSplice;
   to.ObserveEnqueueSpliceRecord = EnqueueSpliceRecord;
   to.ObserveObjectMethods = ObserveObjectMethods;
 });
 
 })