Convert FastNewClosureStub into hydrogen.

src/hydrogen.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 1394 matching lines @@
     enum Direction {
       kPreIncrement,
       kPostIncrement,
       kPreDecrement,
       kPostDecrement
     };
 
     LoopBuilder(HGraphBuilder* builder,
                 HValue* context,
                 Direction direction);
+    LoopBuilder(HGraphBuilder* builder,
+                HValue* context,
+                Direction direction,
+                HValue* increment_amount);
+
     ~LoopBuilder() {
       ASSERT(finished_);
     }
 
     HValue* BeginBody(
         HValue* initial,
         HValue* terminating,
         Token::Value token);
+
+    void Break();
+
     void EndBody();
 
    private:
     Zone* zone() { return builder_->zone(); }
 
     HGraphBuilder* builder_;
     HValue* context_;
+    HValue* increment_amount_;
     HInstruction* increment_;
     HPhi* phi_;
     HBasicBlock* header_block_;
     HBasicBlock* body_block_;
     HBasicBlock* exit_block_;
+    HBasicBlock* exit_trampoline_block_;
     Direction direction_;
     bool finished_;
   };
 
   HValue* BuildNewElementsCapacity(HValue* old_capacity);
 
   void BuildNewSpaceArrayCheck(HValue* length,
                                ElementsKind kind);
 
   class JSArrayBuilder V8_FINAL {
@@ skipping 863 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_