Cleanup include guards:

src/regexp-macro-assembler-irregexp-inl.h

 // 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 14 matching lines @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // A light-weight assembler for the Irregexp byte code.
 
 
 #include "v8.h"
 #include "ast.h"
 #include "bytecodes-irregexp.h"
 
+#ifndef V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_
+#define V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_
 
 namespace v8 { namespace internal {
 
 
 void RegExpMacroAssemblerIrregexp::Emit(uint32_t byte,
                                         uint32_t twenty_four_bits) {
   uint32_t word = ((twenty_four_bits << BYTECODE_SHIFT) | byte);
   ASSERT(pc_ <= buffer_.length());
   if (pc_  + 3 >= buffer_.length()) {
     Expand();
@@ skipping 17 matching lines @@
   ASSERT(pc_ <= buffer_.length());
   if (pc_ + 3 >= buffer_.length()) {
     Expand();
   }
   *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word;
   pc_ += 4;
 }
 
 
 } }  // namespace v8::internal
+
+#endif  // V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_