Compare IC: add STRINGS state.

src/code-stubs.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 406 matching lines @@
 
   virtual void FinishCode(Code* code) { code->set_compare_state(state_); }
 
   virtual CodeStub::Major MajorKey() { return CompareIC; }
   virtual int MinorKey();
 
   virtual int GetCodeKind() { return Code::COMPARE_IC; }
 
   void GenerateSmis(MacroAssembler* masm);
   void GenerateHeapNumbers(MacroAssembler* masm);
+  void GenerateStrings(MacroAssembler* masm);
   void GenerateObjects(MacroAssembler* masm);
   void GenerateMiss(MacroAssembler* masm);
 
   bool strict() const { return op_ == Token::EQ_STRICT; }
   Condition GetCondition() const { return CompareIC::ComputeCondition(op_); }
 
   Token::Value op_;
   CompareIC::State state_;
 };
 
@@ skipping 476 matching lines @@
  private:
   MacroAssembler* masm_;
   bool previous_allow_;
 
   DISALLOW_COPY_AND_ASSIGN(AllowStubCallsScope);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_