A64: Synchronize with r19001.

src/a64/macro-assembler-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 978 matching lines @@
                      int num_double_arguments);
 
   // Calls an API function. Allocates HandleScope, extracts returned value
   // from handle and propagates exceptions.
   // 'stack_space' is the space to be unwound on exit (includes the call JS
   // arguments space and the additional space allocated for the fast call).
   // 'spill_offset' is the offset from the stack pointer where
   // CallApiFunctionAndReturn can spill registers.
   void CallApiFunctionAndReturn(Register function_address,
                                 ExternalReference thunk_ref,
-                                Register thunk_last_arg,
                                 int stack_space,
                                 int spill_offset,
                                 MemOperand return_value_operand,
                                 MemOperand* context_restore_operand);
 
   // The number of register that CallApiFunctionAndReturn will need to save on
   // the stack. The space for these registers need to be allocated in the
   // ExitFrame before calling CallApiFunctionAndReturn.
   static const int kCallApiFunctionSpillSpace = 4;
 
@@ skipping 1174 matching lines @@
 #error "Unsupported option"
 #define CODE_COVERAGE_STRINGIFY(x) #x
 #define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x)
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 #endif  // V8_A64_MACRO_ASSEMBLER_A64_H_