Format all tests.

tests/standalone/io/issue_22636_test.dart

Index: tests/standalone/io/issue_22636_test.dart
diff --git a/tests/standalone/io/issue_22636_test.dart b/tests/standalone/io/issue_22636_test.dart
index d18ebac634900cd75931e0d790b545599db53753..f21df31c7f02360c79d90112c98d2286bd9df8b7 100644
--- a/tests/standalone/io/issue_22636_test.dart
+++ b/tests/standalone/io/issue_22636_test.dart
@@ -41,10 +41,10 @@ void serverListen(RawSocket serverSide) {
         break;
     }
   }
+
   serverSide.listen(serveData);
 }
 
-
 test() async {
   server = await RawServerSocket.bind(InternetAddress.LOOPBACK_IP_V4, 0);
   server.listen(serverListen);
@@ -57,7 +57,6 @@ test() async {
   });
 }
 
-
 void main() {
   test();
 }