Method get_i_with_capture

test/exec/test_function.cpp:217–220

    }

    exec::function<int() noexcept> get_i_with_capture() const noexcept
    {
      return exec::function<int() noexcept>([this]() noexcept { return just_i(); });
    }

    exec::function<int(impl const *) noexcept> get_i_with_pmfn() const noexcept
    {