void FrontGuardData::LogFailure(DebugData& debug, const Header* header) {
  GuardData::LogFailure(header, debug.GetPointer(header), debug.GetFrontGuard(header));
}
bool FrontGuardData::Valid(DebugData& debug, const Header* header) {
  return GuardData::Valid(debug.GetFrontGuard(header));
}