Return Object* instead of MaybeObject* from runtime calls.

src/code-stubs.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 1464 matching lines @@
   // their code generation.  On machines that always have gp registers (x64) we
   // can generate both variants ahead of time.
   static void GenerateAheadOfTime(Isolate* isolate);
 
  protected:
   virtual void VerifyPlatformFeatures(Isolate* isolate) V8_OVERRIDE {
     ASSERT(CpuFeatures::VerifyCrossCompiling(SSE2));
   };
 
  private:
-  void GenerateCore(MacroAssembler* masm,
-                    Label* throw_normal_exception,
-                    Label* throw_termination_exception,
-                    bool do_gc,
-                    bool always_allocate_scope);
-
   // Number of pointers/values returned.
   Isolate* isolate_;
   const int result_size_;
   SaveFPRegsMode save_doubles_;
 
   Major MajorKey() { return CEntry; }
   int MinorKey();
 
   bool NeedsImmovableCode();
 };
@@ skipping 998 matching lines @@
 
 
 class CallDescriptors {
  public:
   static void InitializeForIsolate(Isolate* isolate);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_