Make header include guards great again

runtime/bin/file.h

Index: runtime/bin/file.h
diff --git a/runtime/bin/file.h b/runtime/bin/file.h
index aa37ba57d08972c6b9f65de8916ff9c4969fb3ed..3cce143d95aa435225fa849c86e1bd811a631c25 100644
--- a/runtime/bin/file.h
+++ b/runtime/bin/file.h
@@ -2,8 +2,8 @@
 // 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 BIN_FILE_H_
-#define BIN_FILE_H_
+#ifndef RUNTIME_BIN_FILE_H_
+#define RUNTIME_BIN_FILE_H_
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -243,4 +243,4 @@ class File : public ReferenceCounted<File> {
 }  // namespace bin
 }  // namespace dart
 
-#endif  // BIN_FILE_H_
+#endif  // RUNTIME_BIN_FILE_H_