Regularize namespace closing curlies

src/runtime/runtime-generator.cc

 // Copyright 2014 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/v8.h"
 
 #include "src/arguments.h"
 #include "src/frames-inl.h"
 #include "src/runtime/runtime-utils.h"
 
@@ skipping 208 matching lines @@
 RUNTIME_FUNCTION(Runtime_GeneratorNext) {
   UNREACHABLE();  // Optimization disabled in SetUpGenerators().
   return NULL;
 }
 
 
 RUNTIME_FUNCTION(Runtime_GeneratorThrow) {
   UNREACHABLE();  // Optimization disabled in SetUpGenerators().
   return NULL;
 }
-}
-}  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8