Move error message makers off js builtins object.

src/js/proxy.js

 // Copyright 2011 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 GlobalFunction = global.Function;
 var GlobalObject = global.Object;
-
+var MakeTypeError;
 var ToNameArray;
 
 utils.Import(function(from) {
+  MakeTypeError = from.MakeTypeError;
   ToNameArray = from.ToNameArray;
 });
 
 //----------------------------------------------------------------------------
 
 function ProxyCreate(handler, proto) {
   if (!IS_SPEC_OBJECT(handler))
     throw MakeTypeError(kProxyHandlerNonObject, "create")
   if (IS_UNDEFINED(proto))
     proto = null
@@ skipping 171 matching lines @@
 });
 
 %InstallToContext([
   "derived_get_trap", DerivedGetTrap,
   "derived_has_trap", DerivedHasTrap,
   "derived_set_trap", DerivedSetTrap,
   "proxy_enumerate", ProxyEnumerate,
 ]);
 
 })