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

src/ia32/regexp-macro-assembler-ia32.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 17 matching lines @@
 #include "v8.h"
 #include "unicode.h"
 #include "log.h"
 #include "ast.h"
 #include "regexp-stack.h"
 #include "macro-assembler.h"
 #include "regexp-macro-assembler.h"
 #include "ia32/macro-assembler-ia32.h"
 #include "ia32/regexp-macro-assembler-ia32.h"
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 /*
  * This assembler uses the following register assignment convention
  * - edx : current character. Must be loaded using LoadCurrentCharacter
  *         before using any of the dispatch methods.
  * - edi : current position in input, as negative offset from end of string.
  *         Please notice that this is the byte offset, not the character offset!
  * - esi : end of input (points to byte after last character in input).
  * - ebp : frame pointer. Used to access arguments, local variables and
  *         RegExp registers.
@@ skipping 1332 matching lines @@
 
 
 void RegExpMacroAssemblerIA32::LoadConstantBufferAddress(Register reg,
                                                          ArraySlice* buffer) {
   __ mov(reg, buffer->array());
   __ add(Operand(reg), Immediate(buffer->base_offset()));
 }
 
 #undef __
 }}  // namespace v8::internal