Experimental: use register allocation in the code for keyed property

src/virtual-frame-ia32.h

 // Copyright 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 329 matching lines @@
   Result CallRuntime(Runtime::FunctionId id, int frame_arg_count);
 
   // Invoke a builtin, given the number of arguments it expects on (and
   // removes from) the top of the physical frame.
   void InvokeBuiltin(Builtins::JavaScript id,
                      InvokeFlag flag,
                      int frame_arg_count);
 
   // Call into a JS code object, given the number of arguments it expects on
   // (and removes from) the top of the physical frame.
-  void CallCodeObject(Handle<Code> ic,
-                      RelocInfo::Mode rmode,
-                      int frame_arg_count);
+  Result CallCodeObject(Handle<Code> ic,
+                        RelocInfo::Mode rmode,
+                        int frame_arg_count);
 
   // Drop a number of elements from the top of the expression stack.  May
   // emit code to affect the physical frame.  Does not clobber any registers
   // excepting possibly the stack pointer.
   void Drop(int count);
 
   // Drop one element.
   void Drop() { Drop(1); }
 
   // Duplicate the top element of the frame.
@@ skipping 159 matching lines @@
   // Called after all register-to-memory and register-to-register
   // moves have been made.  After this function returns, the frames
   // should be equal.
   void MergeMoveMemoryToRegisters(VirtualFrame* expected);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_VIRTUAL_FRAME_IA32_H_