Port faster callbacks invocation to x64.

src/ia32/macro-assembler-ia32.h

 // Copyright 2006-2009 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 375 matching lines @@
   void CallRuntime(Runtime::Function* f, int num_arguments);
 
   // Call a runtime function, returning the CodeStub object called.
   // Try to generate the stub code if necessary.  Do not perform a GC
   // but instead return a retry after GC failure.
   Object* TryCallRuntime(Runtime::Function* f, int num_arguments);
 
   // Convenience function: Same as above, but takes the fid instead.
   void CallRuntime(Runtime::FunctionId id, int num_arguments);
 
+  // Convenience function: Same as above, but takes the fid instead.
+  Object* TryCallRuntime(Runtime::FunctionId id, int num_arguments);
+
   // Convenience function: call an external reference.
   void CallExternalReference(ExternalReference ref, int num_arguments);
 
-  // Convenience function: Same as above, but takes the fid instead.
-  Object* TryCallRuntime(Runtime::FunctionId id, int num_arguments);
-
   // Tail call of a runtime routine (jump).
   // Like JumpToExternalReference, but also takes care of passing the number
   // of parameters.
   void TailCallExternalReference(const ExternalReference& ext,
                                  int num_arguments,
                                  int result_size);
 
   // Convenience function: tail call a runtime routine (jump).
   void TailCallRuntime(Runtime::FunctionId fid,
                        int num_arguments,
@@ skipping 12 matching lines @@
   // by PrepareCallCFunction. The called function is not allowed to trigger a
   // garbage collection, since that might move the code and invalidate the
   // return address (unless this is somehow accounted for by the called
   // function).
   void CallCFunction(ExternalReference function, int num_arguments);
   void CallCFunction(Register function, int num_arguments);
 
   void PushHandleScope(Register scratch);
 
   // Pops a handle scope using the specified scratch register and
-  // ensuring that saved register, it is not no_reg, is left unchanged.
+  // ensuring that saved register is left unchanged.
   void PopHandleScope(Register saved, Register scratch);
 
   // As PopHandleScope, but does not perform a GC.  Instead, returns a
   // retry after GC failure object if GC is necessary.
   Object* TryPopHandleScope(Register saved, Register scratch);
 
   // Jump to a runtime routine.
   void JumpToExternalReference(const ExternalReference& ext);
 
 
@@ skipping 156 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_MACRO_ASSEMBLER_IA32_H_