Re-land "Format all multitests"

tests/language/override_field_test.dart

 // Copyright (c) 2011, 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.
 // Dart test checking that static/instance field shadowing do not conflict.
 
 class A {
   int instanceFieldInA;
   static int staticFieldInA;
 }
 
 class B extends A {
   static int instanceFieldInA; //  //# 01: compile-time error
   int staticFieldInA; //           //# 02: static type warning
   static int staticFieldInA; //    //# 03: static type warning
 }
 
 main() {
-  var x  = new B();
+  var x = new B();
 }