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

src/hydrogen-dce.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-dce.h"
 #include "src/v8.h"
 
 namespace v8 {
 namespace internal {
 
@@ skipping 84 matching lines @@
   while (!worklist.is_empty()) {
     HPhi* phi = worklist.RemoveLast();
     HBasicBlock* block = phi->block();
     phi->DeleteAndReplaceWith(NULL);
     if (phi->HasMergedIndex()) {
       block->RecordDeletedPhi(phi->merged_index());
     }
   }
 }
 
-} }  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8