Add reduce to Queue.

tests/corelib/collection_test.dart

 // Copyright (c) 2011, 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 CollectionTest {
   CollectionTest(Collection collection) {
     testReduce(collection);
   }
 
   void testReduce(Collection collection) {
@@ skipping 14 matching lines @@
   for (int i = 0; i < TEST_ELEMENTS.length; i++) {
     fixedList[i] = TEST_ELEMENTS[i];
   }
   new CollectionTest(fixedList);
 
   // Dynamic size list.
   new CollectionTest(new List.from(TEST_ELEMENTS));
 
   // Dynamic size set.
   new CollectionTest(new Set.from(TEST_ELEMENTS));
+
+  // Queue.
+  new CollectionTest(new Queue.from(TEST_ELEMENTS));
 }