Split nested namespaces declaration in two lines in accordance with C++ Style Guide.

src/token.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 10 matching lines @@
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef V8_TOKEN_H_
 #define V8_TOKEN_H_
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 // TOKEN_LIST takes a list of 3 macros M, all of which satisfy the
 // same signature M(name, string, precedence), where name is the
 // symbolic token name, string is the corresponding syntactic symbol
 // (or NULL, for literals), and precedence is the precedence (or 0).
 // The parameters are invoked for token categories as follows:
 //
 //   T: Non-keyword tokens
 //   K: Keyword tokens
 //   F: Future (reserved) keyword tokens
@@ skipping 230 matching lines @@
 #ifdef DEBUG
   static const char* name_[NUM_TOKENS];
 #endif
   static const char* string_[NUM_TOKENS];
   static int8_t precedence_[NUM_TOKENS];
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_TOKEN_H_