Add more error handling to test

tests/standalone/io/http_server_early_client_close_test.dart

Index: tests/standalone/io/http_server_early_client_close_test.dart
diff --git a/tests/standalone/io/http_server_early_client_close_test.dart b/tests/standalone/io/http_server_early_client_close_test.dart
index 72324e2901ddfa1d7c2657eed30c725fdfc331ab..8573f93d8aaa09aef96e3f15caea807f0e5f34af 100644
--- a/tests/standalone/io/http_server_early_client_close_test.dart
+++ b/tests/standalone/io/http_server_early_client_close_test.dart
@@ -152,7 +152,8 @@ void testEarlyClose3() {
           socket.write("\r\n");
           socket.write("data");
           socket.close();
-          socket.listen((_) {});
+          socket.listen((_) {}, onError: (_) {});
+          socket.done.catchError((_) {});
         });
   });
 }