Re-land "Format all multitests"

tests/language/mixin_super_constructor_named_test.dart

 // Copyright (c) 2013, 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";
 
 class Base {
   int i, j;
   Base.ctor(int this.i
             , {int this.j: 10} //   //# 01: compile-time error
-           ) {
+      ) {
     if (j == null) {
       j = 10;
     }
   }
 }
 
 abstract class M {
   get i;
   get j;
   int k = 42;
   foo() => i + j;
 }
 
 class C extends Base with M {
   int l = 131;
   C.foo() : super.ctor(1, j: 13); //# 01: compile-time error
   C.bar() : super.ctor(1);
 }
 
 main() {
   C c1 = new C.foo(); //            //# 01: compile-time error
   C c2 = new C.bar();
   Expect.equals(1, c2.i);
   Expect.equals(10, c2.j);
   Expect.equals(11, c2.foo());
   Expect.equals(42, c2.k);
   Expect.equals(131, c2.l);
 }