Make header include guards great again

runtime/vm/assembler_dbc.h

 // Copyright (c) 2016, 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_ASSEMBLER_DBC_H_
-#define VM_ASSEMBLER_DBC_H_
+#ifndef RUNTIME_VM_ASSEMBLER_DBC_H_
+#define RUNTIME_VM_ASSEMBLER_DBC_H_
 
-#ifndef VM_ASSEMBLER_H_
+#ifndef RUNTIME_VM_ASSEMBLER_H_
 #error Do not include assembler_dbc.h directly; use assembler.h instead.
 #endif
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/constants_dbc.h"
 #include "vm/cpu.h"
 #include "vm/hash_map.h"
 #include "vm/object.h"
 #include "vm/simulator.h"
@@ skipping 170 matching lines @@
 
   GrowableArray<CodeComment*> comments_;
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 
 }  // namespace dart
 
-#endif  // VM_ASSEMBLER_DBC_H_
+#endif  // RUNTIME_VM_ASSEMBLER_DBC_H_