Migrate Object.getPrototypeOf from v8natives to builtins.

src/js/messages.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) {
 
 %CheckIsBootstrapping();
 
@@ skipping 860 matching lines @@
   var holder = this;
   while (holder) {
     var formatted_stack_trace =
       GET_PRIVATE(holder, formattedStackTraceSymbol);
     if (IS_UNDEFINED(formatted_stack_trace)) {
       // No formatted stack trace available.
       var stack_trace = GET_PRIVATE(holder, stackTraceSymbol);
       if (IS_UNDEFINED(stack_trace)) {
         // Neither formatted nor structured stack trace available.
         // Look further up the prototype chain.
-        holder = %_GetPrototype(holder);
+        holder = %object_get_prototype_of(holder);
         continue;
       }
       formatted_stack_trace = FormatStackTrace(holder, stack_trace);
       SET_PRIVATE(holder, stackTraceSymbol, UNDEFINED);
       SET_PRIVATE(holder, formattedStackTraceSymbol, formatted_stack_trace);
     }
     return formatted_stack_trace;
   }
   return UNDEFINED;
 };
@@ skipping 125 matching lines @@
 utils.Export(function(to) {
   to.ErrorToString = ErrorToString;
   to.MakeError = MakeError;
   to.MakeRangeError = MakeRangeError;
   to.MakeSyntaxError = MakeSyntaxError;
   to.MakeTypeError = MakeTypeError;
   to.MakeURIError = MakeURIError;
 });
 
 });