Method isResultTy

include/ast/component/type.h:304–306

    return std::holds_alternative<OptionTy>(Type);
  }
  bool isResultTy() const noexcept {
    return std::holds_alternative<ResultTy>(Type);
  }
  bool isOwnTy() const noexcept { return std::holds_alternative<OwnTy>(Type); }
  bool isBorrowTy() const noexcept {
    return std::holds_alternative<BorrowTy>(Type);