Make header include guards great again

runtime/vm/thread.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_THREAD_H_
-#define VM_THREAD_H_
+#ifndef RUNTIME_VM_THREAD_H_
+#define RUNTIME_VM_THREAD_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/atomic.h"
 #include "vm/bitfield.h"
 #include "vm/globals.h"
 #include "vm/handles.h"
 #include "vm/os_thread.h"
 #include "vm/store_buffer.h"
 #include "vm/runtime_entry_list.h"
@@ skipping 768 matching lines @@
 
 // Disable thread interrupts.
 class DisableThreadInterruptsScope : public StackResource {
  public:
   explicit DisableThreadInterruptsScope(Thread* thread);
   ~DisableThreadInterruptsScope();
 };
 
 }  // namespace dart
 
-#endif  // VM_THREAD_H_
+#endif  // RUNTIME_VM_THREAD_H_