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

src/hydrogen-gvn.cc

 // Copyright 2013 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/hydrogen.h"
 #include "src/hydrogen-gvn.h"
 #include "src/v8.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 876 matching lines @@
             CollectSideEffectsOnPathsToDominatedBlock(dominator_block,
                                                       dominated);
         successor_map->Kill(side_effects_on_all_paths);
         successor_dominators->Kill(side_effects_on_all_paths);
       }
     }
     current = next;
   }
 }
 
-} }  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8