Make header include guards great again

runtime/vm/compiler.h

 // Copyright (c) 2012, 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_COMPILER_H_
-#define VM_COMPILER_H_
+#ifndef RUNTIME_VM_COMPILER_H_
+#define RUNTIME_VM_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
 #include "vm/runtime_entry.h"
 #include "vm/thread_pool.h"
 
 namespace dart {
 
 // Forward declarations.
 class BackgroundCompilationQueue;
@@ skipping 178 matching lines @@
   Monitor* queue_monitor_;  // Controls access to the queue.
   Monitor* done_monitor_;   // Notify/wait that the thread is done.
 
   BackgroundCompilationQueue* function_queue_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(BackgroundCompiler);
 };
 
 }  // namespace dart
 
-#endif  // VM_COMPILER_H_
+#endif  // RUNTIME_VM_COMPILER_H_