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

src/x64/assembler-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/x64/assembler-x64.h"
 
 #include <cstring>
 
 #if V8_TARGET_ARCH_X64
 
@@ skipping 3936 matching lines @@
   // by branch instructions.
   return (1 << rmode_) & kApplyMask;
 }
 
 
 bool RelocInfo::IsInConstantPool() {
   return false;
 }
 
 
-} }  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64