Binary::it_imported_symbols Binary::imported_symbols() {
  return {symbols_, [] (const std::unique_ptr<Symbol>& symbol) {
    return is_imported(*symbol);
  }};
}
Binary::it_imported_symbols Binary::imported_symbols() {
  return {symbols_, [] (const std::unique_ptr<Symbol>& symbol) {
    return is_imported(*symbol);
  }};
}