Format all multitests

tests/language_strong/field_decl_missing_var_type_test.dart

 // Copyright (c) 2012, 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 program for constructors and initializers.
 
 // Exercises issue 2997, missing var or type on field declarations should
 // generate a compile-time error.
 
 class A {
   _this; //                     //# 01: compile-time error
   A(x) : this._this = x; //     //# 01: continued
 }
+
 main() {
   new A(0); //                  //# 01: continued
 }