Re-land "Format all multitests"

tests/language_strong/switch_case_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.
 
 import "package:expect/expect.dart";
 
 class A {
   const A();
   const factory A.B() = B;
   const factory A.C() = C;
@@ skipping 16 matching lines @@
   int get x => 0;
   const factory D() = C.fromD;
 }
 
 main() {
   switch (new B()) {
     case const A.B(): Expect.fail("bad switch"); break; // //# 00: continued
   }
 
   switch (new C()) {
-    case const C(): Expect.fail("bad switch"); break;
-    case const A.C(): Expect.fail("bad switch"); break;
-    case const A.C2(): Expect.fail("bad switch"); break;
+    case const C():
+      Expect.fail("bad switch");
+      break;
+    case const A.C():
+      Expect.fail("bad switch");
+      break;
+    case const A.C2():
+      Expect.fail("bad switch");
+      break;
     case const A(): Expect.fail("bad switch"); break; // //# 01: compile-time error
   }
 
   switch (new A()) {
-    case const A(): Expect.fail("bad switch"); break;
+    case const A():
+      Expect.fail("bad switch");
+      break;
     case const A.B(): Expect.fail("bad switch"); break; // //# 02: compile-time error
   }
 }