Rename A64 port to ARM64 port

src/checks.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 35 matching lines @@
   V8_Fatal(__FILE__, __LINE__, "unreachable code")
 #else
 #define FATAL(msg)                              \
   V8_Fatal("", 0, "%s", (msg))
 #define UNIMPLEMENTED()                         \
   V8_Fatal("", 0, "unimplemented code")
 #define UNREACHABLE() ((void) 0)
 #endif
 
 // Simulator specific helpers.
-#if defined(USE_SIMULATOR) && defined(V8_TARGET_ARCH_A64)
+#if defined(USE_SIMULATOR) && defined(V8_TARGET_ARCH_ARM64)
   // TODO(all): If possible automatically prepend an indicator like
   // UNIMPLEMENTED or LOCATION.
   #define ASM_UNIMPLEMENTED(message)                                         \
   __ Debug(message, __LINE__, NO_PARAM)
   #define ASM_UNIMPLEMENTED_BREAK(message)                                   \
   __ Debug(message, __LINE__,                                                \
            FLAG_ignore_asm_unimplemented_break ? NO_PARAM : BREAK)
   #define ASM_LOCATION(message)                                              \
   __ Debug("LOCATION: " message, __LINE__, NO_PARAM)
 #else
@@ skipping 277 matching lines @@
 
 // "Extra checks" are lightweight checks that are enabled in some release
 // builds.
 #ifdef ENABLE_EXTRA_CHECKS
 #define EXTRA_CHECK(condition) CHECK(condition)
 #else
 #define EXTRA_CHECK(condition) ((void) 0)
 #endif
 
 #endif  // V8_CHECKS_H_