Only pass isolate parameter to C helper functions that need it.

src/deoptimizer.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 174 matching lines @@
   // Change all patched stack guard checks in the unoptimized code
   // back to a normal stack guard check.
   static void RevertStackCheckCodeAt(Address pc_after,
                                      Code* check_code,
                                      Code* replacement_code);
 
   ~Deoptimizer();
 
   void InsertHeapNumberValues(int index, JavaScriptFrame* frame);
 
-  static void ComputeOutputFrames(Deoptimizer* deoptimizer, Isolate* isolate);
+  static void ComputeOutputFrames(Deoptimizer* deoptimizer);
 
   static Address GetDeoptimizationEntry(int id, BailoutType type);
   static int GetDeoptimizationId(Address addr, BailoutType type);
   static int GetOutputInfo(DeoptimizationOutputData* data,
                            unsigned node_id,
                            SharedFunctionInfo* shared);
 
   // Code generation support.
   static int input_offset() { return OFFSET_OF(Deoptimizer, input_); }
   static int output_count_offset() {
@@ skipping 342 matching lines @@
   Handle<Code> code_;
 
   // Next pointer for linked list.
   DeoptimizingCodeListNode* next_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_