Reorganize object type enum, such that proxies are no longer in the middle

src/x64/lithium-codegen-x64.h

 // Copyright 2011 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 122 matching lines @@
   Scope* scope() const { return scope_; }
   HGraph* graph() const { return chunk_->graph(); }
 
   int GetNextEmittedBlock(int block);
   LInstruction* GetNextInstruction();
 
   void EmitClassOfTest(Label* if_true,
                        Label* if_false,
                        Handle<String> class_name,
                        Register input,
-                       Register temporary);
+                       Register temporary,
+                       Register scratch);
 
   int GetStackSlotCount() const { return chunk()->spill_slot_count(); }
   int GetParameterCount() const { return scope()->num_parameters(); }
 
   void Abort(const char* format, ...);
   void Comment(const char* format, ...);
 
   void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code); }
 
   // Code generation passes.  Returns true if code generation should
@@ skipping 209 matching lines @@
  private:
   LCodeGen* codegen_;
   Label entry_;
   Label exit_;
   Label* external_exit_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_LITHIUM_CODEGEN_X64_H_