Format all tests.

tests/language/regress_26133_test.dart

 // Copyright (c) 2016, 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';
 
 isCheckedMode() {
   try {
     var i = 1;
     String s = i;
     return false;
   } on TypeError {
     return true;
   }
 }
 
 var x = 'a';
 
 Future<int> foo() async {
   return x;
 }
 
 main() {
-  foo().then(
-    (_) {
-      Expect.isFalse(isCheckedMode());
-    },
-    onError: (e) {
-      Expect.isTrue(isCheckedMode() && (e is TypeError));
-    }
-  );
+  foo().then((_) {
+    Expect.isFalse(isCheckedMode());
+  }, onError: (e) {
+    Expect.isTrue(isCheckedMode() && (e is TypeError));
+  });
 }
-