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

src/regexp-macro-assembler-irregexp.cc

 // Copyright 2008-2009 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 15 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "v8.h"
 #include "ast.h"
 #include "bytecodes-irregexp.h"
 #include "regexp-macro-assembler.h"
 #include "regexp-macro-assembler-irregexp.h"
 #include "regexp-macro-assembler-irregexp-inl.h"
 
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 
 RegExpMacroAssemblerIrregexp::RegExpMacroAssemblerIrregexp(Vector<byte> buffer)
     : buffer_(buffer),
       pc_(0),
       own_buffer_(false),
       advance_current_end_(kInvalidPC) {
 }
 
 
@@ skipping 435 matching lines @@
   buffer_ = Vector<byte>::New(old_buffer.length() * 2);
   own_buffer_ = true;
   memcpy(buffer_.start(), old_buffer.start(), old_buffer.length());
   if (old_buffer_was_our_own) {
     old_buffer.Dispose();
   }
 }
 
 
 } }  // namespace v8::internal