Split utils.h into utils.h and v8utils.h where the former is independent of V8.

src/v8.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 38 matching lines @@
 // may use NDEBUG - make sure they are consistent.
 #if defined(DEBUG) && defined(NDEBUG)
 #error both DEBUG and NDEBUG are set
 #endif
 
 // Basic includes
 #include "../include/v8.h"
 #include "globals.h"
 #include "checks.h"
 #include "allocation.h"
-#include "utils.h"
+#include "v8utils.h"
 #include "flags.h"
 
 // Objects & heap
 #include "objects-inl.h"
 #include "spaces-inl.h"
 #include "heap-inl.h"
 #include "log-inl.h"
 #include "cpu-profiler-inl.h"
 #include "handles-inl.h"
 #include "vm-state-inl.h"
@@ skipping 40 matching lines @@
   // True if engine has been shut down
   // (reset if engine is restarted)
   static bool has_been_disposed_;
 };
 
 } }  // namespace v8::internal
 
 namespace i = v8::internal;
 
 #endif  // V8_V8_H_