Rename A64 port to ARM64 port

src/arm64/macro-assembler-arm64.h

Index: src/arm64/macro-assembler-arm64.h
diff --git a/src/a64/macro-assembler-a64.h b/src/arm64/macro-assembler-arm64.h
similarity index 99%
rename from src/a64/macro-assembler-a64.h
rename to src/arm64/macro-assembler-arm64.h
index ecc4a0ce02dd08cd42d1876d6e6cd549728c0b09..a54ed30a2b07180f7a151ab1d96975559f190353 100644
--- a/src/a64/macro-assembler-a64.h
+++ b/src/arm64/macro-assembler-arm64.h
@@ -25,15 +25,15 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef V8_A64_MACRO_ASSEMBLER_A64_H_
-#define V8_A64_MACRO_ASSEMBLER_A64_H_
+#ifndef V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
+#define V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
 
 #include <vector>
 
 #include "v8globals.h"
 #include "globals.h"
 
-#include "a64/assembler-a64-inl.h"
+#include "arm64/assembler-arm64-inl.h"
 
 namespace v8 {
 namespace internal {
@@ -1212,7 +1212,7 @@ class MacroAssembler : public Assembler {
   // On successful conversion, the least significant 32 bits of the result are
   // equivalent to the ECMA-262 operation "ToInt32".
   //
-  // Only public for the test code in test-code-stubs-a64.cc.
+  // Only public for the test code in test-code-stubs-arm64.cc.
   void TryConvertDoubleToInt64(Register result,
                                DoubleRegister input,
                                Label* done);
@@ -1963,7 +1963,7 @@ class MacroAssembler : public Assembler {
 
   // Code ageing support functions.
 
-  // Code ageing on A64 works similarly to on ARM. When V8 wants to mark a
+  // Code ageing on ARM64 works similarly to on ARM. When V8 wants to mark a
   // function as old, it replaces some of the function prologue (generated by
   // FullCodeGenerator::Generate) with a call to a special stub (ultimately
   // generated by GenerateMakeCodeYoungAgainCommon). The stub restores the
@@ -2300,4 +2300,4 @@ class InlineSmiCheckInfo {
 #define ACCESS_MASM(masm) masm->
 #endif
 
-#endif  // V8_A64_MACRO_ASSEMBLER_A64_H_
+#endif  // V8_ARM64_MACRO_ASSEMBLER_ARM64_H_