Add a new API V8::SetJitCodeEventHandler to push code name and location to users such as profilers.

src/assembler.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 21 matching lines @@
 // modified significantly by Google Inc.
 // Copyright 2012 the V8 project authors. All rights reserved.
 
 #ifndef V8_ASSEMBLER_H_
 #define V8_ASSEMBLER_H_
 
 #include "v8.h"
 
 #include "allocation.h"
 #include "builtins.h"
+#include "code-events.h"
 #include "gdb-jit.h"
 #include "isolate.h"
 #include "runtime.h"
 #include "token.h"
 
 namespace v8 {
 
 class ApiFunction;
 
 namespace internal {
@@ skipping 839 matching lines @@
  public:
   NullCallWrapper() { }
   virtual ~NullCallWrapper() { }
   virtual void BeforeCall(int call_size) const { }
   virtual void AfterCall() const { }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_H_