Re-land "Format all multitests"

tests/language_strong/factory_implementation_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.
 
 import "package:expect/expect.dart";
 
 abstract class A {
   factory A(int x, int y) = B;
 }
 
 abstract class X {
   factory X(int x, int y) = B.X;
 }
 
 class XImpl implements X {
   final int x;
   final int y;
   XImpl(this.x, this.y);
 }
 
 class B implements A {
   final int x;
   final int y;
 
   B(this.x, this.y);
   // This factory will never be invoked.
   // TODO(ahe): Is this a compile time error?
-  factory B.A(int a, int b) {  return new B(0, 0); }
+  factory B.A(int a, int b) {
+    return new B(0, 0);
+  }
 
-  factory B.X(int a, int b) { return new XImpl(a * 10, b * 10); }
+  factory B.X(int a, int b) {
+    return new XImpl(a * 10, b * 10);
+  }
 }
 
 main() {
   var a = new A(1, 2);
   // Check that constructor B is invoked and not factory B.A.
   Expect.equals(1, a.x);
   Expect.equals(2, a.y);
 
   var x = new X(11, 22); // //# 00: dynamic type error
   // Check that factory is invoked.
   Expect.equals(110, x.x); // //# 00: continued
   Expect.equals(220, x.y); // //# 00: continued
 }