Move phase_zone from CompilationInfo to CompilationPhase.

src/lithium-allocator.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 630 matching lines @@
   LifetimePosition allocation_finger_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(LAllocator);
 };
 
 
 class LAllocatorPhase : public CompilationPhase {
  public:
   LAllocatorPhase(const char* name, LAllocator* allocator)
-      : CompilationPhase(name, allocator->isolate(), allocator->zone()),
+      : CompilationPhase(name, allocator->graph()->info()),
         allocator_(allocator) { }
   ~LAllocatorPhase();
 
  private:
   LAllocator* allocator_;
 
   DISALLOW_COPY_AND_ASSIGN(LAllocatorPhase);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LITHIUM_ALLOCATOR_H_