Fix test after 64 bit heap size change.

src/spaces.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 935 matching lines @@
     available_ -= size_in_bytes;
   }
 
   // Allocate from available bytes (available -> size).
   void AllocateBytes(int size_in_bytes) {
     available_ -= size_in_bytes;
     size_ += size_in_bytes;
   }
 
   // Free allocated bytes, making them available (size -> available).
-  void DeallocateBytes(int size_in_bytes) {
+  void DeallocateBytes(intptr_t size_in_bytes) {
     size_ -= size_in_bytes;
     available_ += size_in_bytes;
   }
 
   // Waste free bytes (available -> waste).
   void WasteBytes(int size_in_bytes) {
     available_ -= size_in_bytes;
     waste_ += size_in_bytes;
   }
 
@@ skipping 1159 matching lines @@
 
   // Returns the object in this chunk.
   inline HeapObject* GetObject();
 
   // Given a requested size returns the physical size of a chunk to be
   // allocated.
   static int ChunkSizeFor(int size_in_bytes);
 
   // Given a chunk size, returns the object size it can accommodate.  Used by
   // LargeObjectSpace::Available.
-  static int ObjectSizeFor(int chunk_size) {
+  static intptr_t ObjectSizeFor(intptr_t chunk_size) {
     if (chunk_size <= (Page::kPageSize + Page::kObjectStartOffset)) return 0;
     return chunk_size - Page::kPageSize - Page::kObjectStartOffset;
   }
 
  private:
   // A pointer to the next large object chunk in the space or NULL.
   LargeObjectChunk* next_;
 
   // The size of this chunk.
   size_t size_;
@@ skipping 109 matching lines @@
 
  private:
   LargeObjectChunk* current_;
   HeapObjectCallback size_func_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SPACES_H_