Turn FastNewContextStub 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 538 matching lines @@
   int NotMissMinorKey() {
     return StrictModeBits::encode(language_mode_ != CLASSIC_MODE) |
       IsGeneratorBits::encode(is_generator_);
   }
 
   LanguageMode language_mode_;
   bool is_generator_;
 };
 
 
-class FastNewContextStub : public PlatformCodeStub {
+class FastNewContextStub V8_FINAL : public HydrogenCodeStub {
  public:
   static const int kMaximumSlots = 64;
 
   explicit FastNewContextStub(int slots) : slots_(slots) {
     ASSERT(slots_ > 0 && slots_ <= kMaximumSlots);
   }
 
-  void Generate(MacroAssembler* masm);
+  virtual Handle<Code> GenerateCode(Isolate* isolate);
+
+  virtual void InitializeInterfaceDescriptor(
+      Isolate* isolate,
+      CodeStubInterfaceDescriptor* descriptor);
+
+  static void InstallDescriptors(Isolate* isolate);
+
+  int slots() const { return slots_; }
+
+  virtual Major MajorKey() V8_OVERRIDE { return FastNewContext; }
+  virtual int NotMissMinorKey() V8_OVERRIDE { return slots_; }
+
+  // Parameters accessed via CodeStubGraphBuilder::GetParameter()
+  static const int kFunction = 0;
 
  private:
   int slots_;
-
-  Major MajorKey() { return FastNewContext; }
-  int MinorKey() { return slots_; }
 };
 
 
 class FastNewBlockContextStub : public PlatformCodeStub {
  public:
   static const int kMaximumSlots = 64;
 
   explicit FastNewBlockContextStub(int slots) : slots_(slots) {
     ASSERT(slots_ > 0 && slots_ <= kMaximumSlots);
   }
@@ skipping 1904 matching lines @@
 
 
 class CallDescriptors {
  public:
   static void InitializeForIsolate(Isolate* isolate);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_