Re-land "Format all multitests"

tests/lib/mirrors/library_metadata2_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 'dart:mirrors';
 
 import 'library_metadata2_lib1.dart';
 
 import 'library_metadata2_lib2.dart'; //# 01: compile-time error
 
 void main() {
   for (var library in currentMirrorSystem().libraries.values) {
-    print(library.metadata);  // Processing @MyConst() in lib2 results in a
-                              // delayed compilation error here.
+    print(library.metadata); // Processing @MyConst() in lib2 results in a
+    // delayed compilation error here.
   }
 }