Make header include guards great again

runtime/vm/regexp_bytecodes.h

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#ifndef VM_REGEXP_BYTECODES_H_
-#define VM_REGEXP_BYTECODES_H_
+#ifndef RUNTIME_VM_REGEXP_BYTECODES_H_
+#define RUNTIME_VM_REGEXP_BYTECODES_H_
 
 namespace dart {
 
 const int BYTECODE_MASK = 0xff;
 // The first argument is packed in with the byte code in one word, but so it
 // has 24 bits, but it can be positive and negative so only use 23 bits for
 // positive values.
 const unsigned int MAX_FIRST_ARG = 0x7fffffu;
 const int BYTECODE_SHIFT = 8;
 
@@ skipping 52 matching lines @@
 BYTECODE_ITERATOR(DECLARE_BYTECODES)
 #undef DECLARE_BYTECODES
 
 #define DECLARE_BYTECODE_LENGTH(name, code, length) \
   static const int BC_##name##_LENGTH = length;
 BYTECODE_ITERATOR(DECLARE_BYTECODE_LENGTH)
 #undef DECLARE_BYTECODE_LENGTH
 
 }  // namespace dart
 
-#endif  // VM_REGEXP_BYTECODES_H_
+#endif  // RUNTIME_VM_REGEXP_BYTECODES_H_