Format all tests.

tests/language_strong/regress_22438_test.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import "dart:async";
 import "package:expect/expect.dart";
 
 main() async {
   var error = "no error";
   try {
     try {
       await new Future.error("error");
-    } on MissingType catch(e) {
-    }
+    } on MissingType catch (e) {}
   } catch (e) {
     error = e;
   }
   Expect.isTrue(error is TypeError);
 }