Introduce HTransitionElementsKind instruction.

src/ic.h

 // Copyright 2011 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 554 matching lines @@
   // Code generators for stub routines.  Only called once at startup.
   static void GenerateInitialize(MacroAssembler* masm) {
     GenerateMiss(masm, false);
   }
   static void GenerateMiss(MacroAssembler* masm, bool force_generic);
   static void GenerateSlow(MacroAssembler* masm);
   static void GenerateRuntimeSetProperty(MacroAssembler* masm,
                                          StrictModeFlag strict_mode);
   static void GenerateGeneric(MacroAssembler* masm, StrictModeFlag strict_mode);
   static void GenerateNonStrictArguments(MacroAssembler* masm);
+  static void GenerateTransitionElementsSmiToDouble(MacroAssembler* masm);
+  static void GenerateTransitionElementsDoubleToObject(MacroAssembler* masm);
 
   virtual MaybeObject* GetElementStubWithoutMapCheck(
       bool is_js_array,
       ElementsKind elements_kind);
 
  protected:
   virtual Code::Kind kind() const { return Code::KEYED_STORE_IC; }
 
   virtual MaybeObject* ComputePolymorphicStub(
       MapList* receiver_maps,
@@ skipping 152 matching lines @@
   void patch(Code* code);
 };
 
 
 // Helper for BinaryOpIC and CompareIC.
 void PatchInlinedSmiCode(Address address);
 
 } }  // namespace v8::internal
 
 #endif  // V8_IC_H_