Make header include guards great again

runtime/vm/constant_propagator.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_CONSTANT_PROPAGATOR_H_
-#define VM_CONSTANT_PROPAGATOR_H_
+#ifndef RUNTIME_VM_CONSTANT_PROPAGATOR_H_
+#define RUNTIME_VM_CONSTANT_PROPAGATOR_H_
 
 #include "vm/intermediate_language.h"
 #include "vm/flow_graph.h"
 
 namespace dart {
 
 // Sparse conditional constant propagation and unreachable code elimination.
 // Assumes that use lists are computed and preserves them.
 class ConstantPropagator : public FlowGraphVisitor {
  public:
@@ skipping 66 matching lines @@
   BitVector* marked_phis_;
 
   // Worklists of blocks and definitions.
   GrowableArray<BlockEntryInstr*> block_worklist_;
   DefinitionWorklist definition_worklist_;
 };
 
 
 }  // namespace dart
 
-#endif  // VM_CONSTANT_PROPAGATOR_H_
+#endif  // RUNTIME_VM_CONSTANT_PROPAGATOR_H_