A64: Synchronize with r15204.

src/a64/lithium-a64.h

 // Copyright 2013 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 2675 matching lines @@
 
   // Build the sequence for the graph.
   LPlatformChunk* Build();
 
   // Declare methods that deal with the individual node types.
 #define DECLARE_DO(type) LInstruction* Do##type(H##type* node);
   HYDROGEN_CONCRETE_INSTRUCTION_LIST(DECLARE_DO)
 #undef DECLARE_DO
 
   static bool HasMagicNumberForDivision(int32_t divisor);
-  static HValue* SimplifiedDividendForMathFloorOfDiv(HValue* val);
   static HValue* SimplifiedDivisorForMathFloorOfDiv(HValue* val);
 
  private:
   enum Status {
     UNUSED,
     BUILDING,
     DONE,
     ABORTED
   };
 
@@ skipping 121 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_A64_LITHIUM_A64_H_