Fix test after 64 bit heap size change.

src/heap-inl.h

 // Copyright 2006-2008 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 18 matching lines @@
 #define V8_HEAP_INL_H_
 
 #include "heap.h"
 #include "objects.h"
 #include "v8-counters.h"
 
 namespace v8 {
 namespace internal {
 
 void Heap::UpdateOldSpaceLimits() {
-  int old_gen_size = PromotedSpaceSize();
+  intptr_t old_gen_size = PromotedSpaceSize();
   old_gen_promotion_limit_ =
       old_gen_size + Max(kMinimumPromotionLimit, old_gen_size / 3);
   old_gen_allocation_limit_ =
       old_gen_size + Max(kMinimumAllocationLimit, old_gen_size / 2);
   old_gen_exhausted_ = false;
 }
 
 
 int Heap::MaxObjectSizeInPagedSpace() {
   return Page::kMaxHeapObjectSize;
@@ skipping 450 matching lines @@
 
 
 void ExternalStringTable::ShrinkNewStrings(int position) {
   new_space_strings_.Rewind(position);
   Verify();
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_