Cosmetic changes to tests to make it easier to concatenate them.

src/arm64/cpu-arm64.cc

Index: src/arm64/cpu-arm64.cc
diff --git a/src/arm64/cpu-arm64.cc b/src/arm64/cpu-arm64.cc
index 11ba7c98a0d20764f3a775e4fc66dfa083b13e13..8258fbfde368d4591c1ae56d2434038875d2f170 100644
--- a/src/arm64/cpu-arm64.cc
+++ b/src/arm64/cpu-arm64.cc
@@ -120,6 +120,7 @@ void CpuFeatures::FlushICache(void* address, size_t length) {
 #endif
 }
 
-} }  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64