VM: Re-format to use at most one newline between functions

runtime/vm/boolfield.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 RUNTIME_VM_BOOLFIELD_H_
 #define RUNTIME_VM_BOOLFIELD_H_
 
+#include "platform/assert.h"
 #include "vm/globals.h"
 
 namespace dart {
 
 // BoolField is a template for encoding and decoding a bit inside an
 // unsigned machine word.
 template <int position>
 class BoolField {
  public:
   // Returns a uword with the bool value encoded.
@@ skipping 14 matching lines @@
   static uword update(bool value, uword original) {
     ASSERT(position < sizeof(uword));
     const uword mask = 1U << position;
     return value ? original | mask : original & ~mask;
   }
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_BOOLFIELD_H_