Format all tests.

tests/language/private_clash_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.
 
 library a;
 
 import 'private_clash_lib.dart' as lib;
 import 'package:expect/expect.dart';
 
 class A extends lib.B {
   var _b$_c$ = 100; // With library prefix: _a$_b$_c$
 
   getValueB() {
-    try {} catch(e) {} // no inline
+    try {} catch (e) {} // no inline
     return this._b$_c$;
   }
 }
 
 main() {
   A a = new A();
   Expect.equals(110, a.getValueA() + a.getValueB());
 }