Build fix for Linux64 after r10529.

src/profile-generator.cc

 // Copyright 2011 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 2815 matching lines @@
     disposed_ = true;
   }
   virtual bool IsEquivalent(RetainedObjectInfo* other) {
     return hash_ == other->GetHash() && !strcmp(label_, other->GetLabel());
   }
   virtual intptr_t GetHash() { return hash_; }
   virtual const char* GetLabel() { return label_; }
 
  private:
   bool disposed_;
-  int hash_;
+  intptr_t hash_;
   const char* label_;
 };
 
 
 NativeGroupRetainedObjectInfo* NativeObjectsExplorer::FindOrAddGroupInfo(
     const char* label) {
   const char* label_copy = collection_->names()->GetCopy(label);
   intptr_t hash = HashSequentialString(label_copy, strlen(label_copy),
                                        HEAP->HashSeed());
   HashMap::Entry* entry = native_groups_.Lookup(const_cast<char*>(label_copy),
@@ skipping 811 matching lines @@
 
 
 void HeapSnapshotJSONSerializer::SortHashMap(
     HashMap* map, List<HashMap::Entry*>* sorted_entries) {
   for (HashMap::Entry* p = map->Start(); p != NULL; p = map->Next(p))
     sorted_entries->Add(p);
   sorted_entries->Sort(SortUsingEntryValue);
 }
 
 } }  // namespace v8::internal