Inline number to string conversion for string addition into BinaryOp(Stub).

src/code-stubs.h

 // Copyright 2012 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 458 matching lines @@
 class NumberToStringStub V8_FINAL : public HydrogenCodeStub {
  public:
   NumberToStringStub() {}
 
   virtual Handle<Code> GenerateCode(Isolate* isolate) V8_OVERRIDE;
 
   virtual void InitializeInterfaceDescriptor(
       Isolate* isolate,
       CodeStubInterfaceDescriptor* descriptor) V8_OVERRIDE;
 
+  static void InstallDescriptors(Isolate* isolate);
+
   // Parameters accessed via CodeStubGraphBuilder::GetParameter()
   static const int kNumber = 0;
 
  private:
   virtual Major MajorKey() V8_OVERRIDE { return NumberToString; }
   virtual int NotMissMinorKey() V8_OVERRIDE { return 0; }
 };
 
 
 class FastNewClosureStub : public HydrogenCodeStub {
@@ skipping 1867 matching lines @@
   int MinorKey() { return 0; }
 
   void Generate(MacroAssembler* masm);
 
   DISALLOW_COPY_AND_ASSIGN(ProfileEntryHookStub);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_