Turn RegExpConstructResultStub into a HydrogenCodeStub.

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 1575 matching lines @@
   RegExpExecStub() { }
 
  private:
   Major MajorKey() { return RegExpExec; }
   int MinorKey() { return 0; }
 
   void Generate(MacroAssembler* masm);
 };
 
 
-class RegExpConstructResultStub: public PlatformCodeStub {
+class RegExpConstructResultStub V8_FINAL : public HydrogenCodeStub {
  public:
   RegExpConstructResultStub() { }
 
+  virtual Handle<Code> GenerateCode(Isolate* isolate) V8_OVERRIDE;
+
+  virtual void InitializeInterfaceDescriptor(
+      Isolate* isolate,
+      CodeStubInterfaceDescriptor* descriptor) V8_OVERRIDE;
+
+  virtual Major MajorKey() V8_OVERRIDE { return RegExpConstructResult; }
+  virtual int NotMissMinorKey() V8_OVERRIDE { return 0; }
+
+  static void InstallDescriptors(Isolate* isolate);
+
+  // Parameters accessed via CodeStubGraphBuilder::GetParameter()
+  static const int kLength = 0;
+  static const int kIndex = 1;
+  static const int kInput = 2;
+
  private:
-  Major MajorKey() { return RegExpConstructResult; }
-  int MinorKey() { return 0; }
-
-  void Generate(MacroAssembler* masm);
+  DISALLOW_COPY_AND_ASSIGN(RegExpConstructResultStub);
 };
 
 
 class CallFunctionStub: public PlatformCodeStub {
  public:
   CallFunctionStub(int argc, CallFunctionFlags flags)
       : argc_(argc), flags_(flags) { }
 
   void Generate(MacroAssembler* masm);
 
@@ skipping 893 matching lines @@
 
 
 class CallDescriptors {
  public:
   static void InitializeForIsolate(Isolate* isolate);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_