Re-land "Format all multitests"

tests/language/override_inheritance_mixed_test.dart

 // Copyright (c) 2014, 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 A {
   var member1; //# 01: compile-time error
   member2() {} //# 02: compile-time error
   get member3 => null; //# 03: compile-time error
   member4() {} //# 04: compile-time error
 }
 
 abstract class I {
   var member5; //# 05: ok
   var member6; //# 06: static type warning
   get member7; //# 07: static type warning
   get member8; //# 08: static type warning
   get member9; //# 09: static type warning
 }
 
 abstract class J {
   get member5; //# 05: continued
   member6() {} //# 06: continued
   member7() {} //# 07: continued
   member8() {} //# 08: continued
   member9() {} //# 09: continued
 }
 
-abstract class B extends A implements I, J {
-}
+abstract class B extends A implements I, J {}
 
 class Class extends B {
   member1() {} //# 01: continued
   var member2; //# 02: continued
   member3() {} //# 03: continued
   get member4 => null; //# 04: continued
   var member5; //# 05: continued
   member8() {} //# 08: continued
   get member9 => null; //# 09: continued
 }
 
 main() {
   new Class();
 }