Function __coroutine_unhandled_stopped

include/stdexec/coroutine.hpp:281–286

  }

  inline auto __coroutine_unhandled_stopped(__coroutine_handle<> __coro) noexcept  //
    -> __std::coroutine_handle<>
  {
    __unhandled_stopped_frame::value.__promise_.__coro_ = __coro;
    return __std::coroutine_handle<>::from_address(&__unhandled_stopped_frame::value);
  }

  inline auto
  __coroutine_signal_completion(__std::atomic<std::thread::id>& __thread_id_) noexcept  //