message: solve name lookup issue on older gcc
diff: @@ -1745,7 +1745,7 @@ std::ostream& Binary::print(std::ostream& os) const {
  if (has_debug()) {
  os << "Debug" << std::endl;
  os << "=====" << std::endl;
  - for (const Debug& debug : debug()) {
  + for (const Debug& debug : this->debug()) {
  os << debug << std::endl;
  }
  os << std::endl;
  