[Isolates] Avoid dereferencing Isolate::Current() to check oddball identities...

src/heap.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 1291 matching lines @@
 
   // These four Create*EntryStub functions are here because of a gcc-4.4 bug
   // that assigns wrong vtable entries.
   void CreateCEntryStub();
   void CreateJSEntryStub();
   void CreateJSConstructEntryStub();
   void CreateRegExpCEntryStub();
 
   void CreateFixedStubs();
 
-  Object* CreateOddball(const char* to_string, Object* to_number);
+  Object* CreateOddball(const char* to_string, Object* to_number, byte kind);
 
   // Allocate empty fixed array.
   Object* AllocateEmptyFixedArray();
 
   // Performs a minor collection in new generation.
   void Scavenge();
 
   static String* UpdateNewSpaceReferenceInExternalStringTableEntry(
       Object** pointer);
 
@@ skipping 712 matching lines @@
   SubCache* caches_[kNumberOfCaches];
   DISALLOW_COPY_AND_ASSIGN(TranscendentalCache);
 };
 
 
 } }  // namespace v8::internal
 
 #undef HEAP
 
 #endif  // V8_HEAP_H_