Convert NoMoreElementsException and EmptyQueueException to StateError.

tests/corelib/queue_iterator_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 QueueIteratorTest {
   static testMain() {
     testSmallQueue();
     testLargeQueue();
     testEmptyQueue();
   }
 
   static void testThrows(Iterator<int> it) {
     Expect.equals(false, it.hasNext);
     var exception = null;
     try {
       it.next();
-    } on NoMoreElementsException catch (e) {
+    } on StateError catch (e) {
       exception = e;
     }
     Expect.equals(true, exception != null);
   }
 
   static int sum(int expected, Iterator<int> it) {
     int count = 0;
     while (it.hasNext) {
       count += it.next();
     }
@@ skipping 30 matching lines @@
     Iterator<int> it = queue.iterator();
     Expect.equals(false, it.hasNext);
     sum(0, it);
     testThrows(it);
   }
 }
 
 main() {
   QueueIteratorTest.testMain();
 }