Change KeyedStoreIC interface to take value, key, and receiver in registers.

src/ia32/virtual-frame-ia32.h

 // Copyright 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 555 matching lines @@
   // should be equal.
   void MergeMoveMemoryToRegisters(VirtualFrame* expected);
 
   // Invalidates a frame slot (puts an invalid frame element in it).
   // Copies on the frame are correctly handled, and if this slot was
   // the backing store of copies, the index of the new backing store
   // is returned.  Otherwise, returns kIllegalIndex.
   // Register counts are correctly updated.
   int InvalidateFrameSlotAt(int index);
 
+  // This function assumes that a and b are the only results that could be in
+  // the registers a_reg or b_reg.  Other results can be live, but must not
+  //  be in the registers a_reg or b_reg.  The results a and b are invalidated.
+  void MoveResultsToRegisters(Result* a,
+                              Result* b,
+                              Register a_reg,
+                              Register b_reg);
+
   // Call a code stub that has already been prepared for calling (via
   // PrepareForCall).
   Result RawCallStub(CodeStub* stub);
 
   // Calls a code object which has already been prepared for calling
   // (via PrepareForCall).
   Result RawCallCodeObject(Handle<Code> code, RelocInfo::Mode rmode);
 
   bool Equals(VirtualFrame* other);
 
   // Classes that need raw access to the elements_ array.
   friend class DeferredCode;
   friend class JumpTarget;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_VIRTUAL_FRAME_IA32_H_