Handlify the remaining CallStubCompiler functions.

src/x64/code-stubs-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 412 matching lines @@
 
   void Generate(MacroAssembler* masm);
 
   static void GenerateNegativeLookup(MacroAssembler* masm,
                                      Label* miss,
                                      Label* done,
                                      Register properties,
                                      Handle<String> name,
                                      Register r0);
 
-  // TODO(kmillikin): Eliminate this function when the stub cache is fully
-  // handlified.
-  MUST_USE_RESULT static MaybeObject* TryGenerateNegativeLookup(
-      MacroAssembler* masm,
-      Label* miss,
-      Label* done,
-      Register properties,
-      String* name,
-      Register r0);
-
   static void GeneratePositiveLookup(MacroAssembler* masm,
                                      Label* miss,
                                      Label* done,
                                      Register elements,
                                      Register name,
                                      Register r0,
                                      Register r1);
 
   virtual bool SometimesSetsUpAFrame() { return false; }
 
@@ skipping 273 matching lines @@
   RememberedSetAction remembered_set_action_;
   SaveFPRegsMode save_fp_regs_mode_;
   Label slow_;
   RegisterAllocation regs_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_CODE_STUBS_X64_H_