[presubmit] Enable readability/namespace linter checking.

src/func-name-inferrer.h

 // Copyright 2006-2009 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.
 
 #ifndef V8_FUNC_NAME_INFERRER_H_
 #define V8_FUNC_NAME_INFERRER_H_
 
 #include "src/handles.h"
 #include "src/zone.h"
 
@@ skipping 91 matching lines @@
   AstValueFactory* ast_value_factory_;
   ZoneList<int> entries_stack_;
   ZoneList<Name> names_stack_;
   ZoneList<FunctionLiteral*> funcs_to_infer_;
   Zone* zone_;
 
   DISALLOW_COPY_AND_ASSIGN(FuncNameInferrer);
 };
 
 
-} }  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8
 
 #endif  // V8_FUNC_NAME_INFERRER_H_