message: Add last cid to coroutine stats.
diff: @@ -492,6 +492,7 @@ static PHP_METHOD(swoole_coroutine_util, stats)
  add_assoc_long_ex(return_value, ZEND_STRL("c_stack_size"), Coroutine::get_stack_size());
  add_assoc_long_ex(return_value, ZEND_STRL("coroutine_num"), Coroutine::count());
  add_assoc_long_ex(return_value, ZEND_STRL("coroutine_peak_num"), Coroutine::get_peak_num());
  + add_assoc_long_ex(return_value, ZEND_STRL("coroutine_last_cid"), Coroutine::get_last_cid());
  }
  static PHP_METHOD(swoole_coroutine_util, getCid)
  