ARM64: disable ASM_LOCATION in release-sim builds

Disable ASM_LOCATION inline debug messages in release builds. This makes code
size measurements more representative when using the simulator.

BUG=

Review-Url: https://codereview.chromium.org/1919013005
Cr-Commit-Position: refs/heads/master@{#35990}

src/arm64/macro-assembler-arm64.h

@@ -21,12 +21,15 @@
   #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)
+#if DEBUG
+#define ASM_LOCATION(message) __ Debug("LOCATION: " message, __LINE__, NO_PARAM)
+#else
+#define ASM_LOCATION(message)
+#endif
 #else
-  #define ASM_UNIMPLEMENTED(message)
-  #define ASM_UNIMPLEMENTED_BREAK(message)
-  #define ASM_LOCATION(message)
+#define ASM_UNIMPLEMENTED(message)
+#define ASM_UNIMPLEMENTED_BREAK(message)
+#define ASM_LOCATION(message)
 #endif