X64: Omitted creating native builtins and using them in test-heap.

src/objects.cc

 // Copyright 2006-2009 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 518 matching lines @@
 }
 
 
 void Failure::FailurePrint() {
   PrintF("Failure(%d)", value());
 }
 
 
 Failure* Failure::RetryAfterGC(int requested_bytes, AllocationSpace space) {
   ASSERT((space & ~kSpaceTagMask) == 0);
+  // TODO(X64): Stop using Smi validation for non-smi checks, even if they
+  // happen to be identical at the moment.
+
   int requested = requested_bytes >> kObjectAlignmentBits;
   int value = (requested << kSpaceTagSize) | space;
   // We can't very well allocate a heap number in this situation, and if the
   // requested memory is so large it seems reasonable to say that this is an
   // out of memory situation.  This fixes a crash in
   // js1_5/Regress/regress-303213.js.
   if (value >> kSpaceTagSize != requested ||
       !Smi::IsValid(value) ||
       value != ((value << kFailureTypeTagSize) >> kFailureTypeTagSize) ||
       !Smi::IsValid(value << kFailureTypeTagSize)) {
@@ skipping 6909 matching lines @@
   // No break point.
   if (break_point_objects()->IsUndefined()) return 0;
   // Single beak point.
   if (!break_point_objects()->IsFixedArray()) return 1;
   // Multiple break points.
   return FixedArray::cast(break_point_objects())->length();
 }
 #endif
 
 } }  // namespace v8::internal