Format all tests.

tests/language/regress_27572_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.
 
 // Test static noSuchMethod with a prefix.
 
 import "package:expect/expect.dart";
 
 import 'dart:collection' as col;
 
 main() {
   try {
     col.foobar(1234567);
-  } catch(e) {
+  } catch (e) {
     Expect.isTrue(e.toString().contains("1234567"));
   }
 }