Cleanup of contexts in the full code generator.

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 485 matching lines @@
   // Utilities
 
   void Ret();
 
   // Emit code to discard a non-negative number of pointer-sized elements
   // from the stack, clobbering only the esp register.
   void Drop(int element_count);
 
   void Call(Label* target) { call(target); }
 
+  // Move if the registers are not identical.
+  void Move(Register target, Register source);
+
   void Move(Register target, Handle<Object> value);
 
   Handle<Object> CodeObject() { return code_object_; }
 
 
   // ---------------------------------------------------------------------------
   // StatsCounter support
 
   void SetCounter(StatsCounter* counter, int value);
   void IncrementCounter(StatsCounter* counter, int value);
@@ skipping 137 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_MACRO_ASSEMBLER_IA32_H_