Re-land "Format all multitests"

tests/language_strong/mixin_illegal_constructor_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.
 
 class M0 {
-  factory M0(a,b,c) => null;
+  factory M0(a, b, c) => null;
   factory M0.named() => null;
 }
 
 class M1 {
   M1();
 }
 
 class M2 {
   M2.named();
 }
 
 class C0 = Object with M0;
 class C1 = Object with M1; //     //# 01: compile-time error
 class C2 = Object with M2; //     //# 02: compile-time error
 class C3 = Object with M0, M1; // //# 03: compile-time error
 class C4 = Object with M1, M0; // //# 04: compile-time error
 class C5 = Object with M0, M2; // //# 05: compile-time error
 class C6 = Object with M2, M0; // //# 06: compile-time error
 
-class D0 extends Object with M0 { }
+class D0 extends Object with M0 {}
 class D1 extends Object with M1 { } //     //# 07: compile-time error
 class D2 extends Object with M2 { } //     //# 08: compile-time error
 class D3 extends Object with M0, M1 { } // //# 09: compile-time error
 class D4 extends Object with M1, M0 { } // //# 10: compile-time error
 class D5 extends Object with M0, M2 { } // //# 11: compile-time error
 class D6 extends Object with M2, M0 { } // //# 12: compile-time error
 
 main() {
   new C0();
   new C1(); // //# 01: continued
   new C2(); // //# 02: continued
   new C3(); // //# 03: continued
   new C4(); // //# 04: continued
   new C5(); // //# 05: continued
   new C6(); // //# 06: continued
 
   new D0();
   new D1(); // //# 07: continued
   new D2(); // //# 08: continued
   new D3(); // //# 09: continued
   new D4(); // //# 10: continued
   new D5(); // //# 11: continued
   new D6(); // //# 12: continued
 
   new C0(1,2,3); //  //# 13: static type warning, runtime error
   new C0.named(); // //# 14: static type warning, runtime error
   new D0(1,2,3); //  //# 15: static type warning, runtime error
   new D0.named(); // //# 16: static type warning, runtime error
 }