A64: Synchronize with r18084.

test/mjsunit/stack-traces-custom-lazy.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 28 matching lines @@
   Error.prepareStackTrace = function(e, frames) {
     return "bar";
   }
 
   assertEquals("bar", error.stack);
   Error.prepareStackTrace = undefined;
 }
 
 testPrepareStackTrace(function() { throw new Error("foo"); });
 testPrepareStackTrace(function f() { f(); });
-