Break Crankshaft into phases.

src/lithium.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 604 matching lines @@
   void SkipUninteresting() {
     while (current_iterator_.env() != NULL && current_iterator_.Done()) {
       current_iterator_ = ShallowIterator(current_iterator_.env()->outer());
     }
   }
 
   ShallowIterator current_iterator_;
 };
 
 
+class Lithium: public AllStatic {
+ public:
+  static LChunk* CreateChunk(HGraph* graph, HGraphBuilder* builder);

[danno, 2012/07/11 10:04:57]

Why not make this a static method on LChunk?

+  static Handle<Code> Codegen(LChunk* chunk);

[danno, 2012/07/11 10:04:57]

Can you make this a method on the chunk?

+};
+
+
 int ElementsKindToShiftSize(ElementsKind elements_kind);
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LITHIUM_H_