message: fixed compile error with --disable-coroutine
diff: @@ -260,9 +260,11 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_async_dns_lookup, 0, 0, 2)
  ZEND_ARG_INFO(0, content)
  ZEND_END_ARG_INFO()
  +#ifdef SW_COROUTINE
  ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_async_dns_lookup_coro, 0, 0, 1)
  ZEND_ARG_INFO(0, domain_name)
  ZEND_END_ARG_INFO()
  +#endif
  ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_client_select, 0, 0, 3)
  ZEND_ARG_INFO(1, read_array)
  @@ -329,8 +331,9 @@ const zend_function_entry swoole_functions[] =
  PHP_FE(swoole_async_readfile, arginfo_swoole_async_readfile)
  PHP_FE(swoole_async_writefile, arginfo_swoole_async_writefile)
  PHP_FE(swoole_async_dns_lookup, arginfo_swoole_async_dns_lookup)
  +#ifdef SW_COROUTINE
  PHP_FE(swoole_async_dns_lookup_coro, arginfo_swoole_async_dns_lookup_coro)
  -
  +#endif
  /*------other-----*/
  PHP_FE(swoole_client_select, arginfo_swoole_client_select)
  PHP_FALIAS(swoole_select, swoole_client_select, arginfo_swoole_client_select)
  @@ -433,8 +436,9 @@ static const zend_function_entry swoole_async_methods[] =
  ZEND_FENTRY(readFile, ZEND_FN(swoole_async_readfile), arginfo_swoole_async_readfile, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
  ZEND_FENTRY(writeFile, ZEND_FN(swoole_async_writefile), arginfo_swoole_async_writefile, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
  ZEND_FENTRY(dnsLookup, ZEND_FN(swoole_async_dns_lookup), arginfo_swoole_async_dns_lookup, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
  +#ifdef SW_COROUTINE
  ZEND_FENTRY(dnsLookupCoro, ZEND_FN(swoole_async_dns_lookup_coro), arginfo_swoole_async_dns_lookup_coro, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
  -
  +#endif
  ZEND_FENTRY(set, ZEND_FN(swoole_async_set), arginfo_swoole_async_set, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
  PHP_FE_END
  };
  