Fix warnings in library-tests.

tests/lib/async/stream_controller_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.
 
 // Test the basic StreamController and StreamController.singleSubscription.
 library stream_controller_test;
 
 import "package:expect/expect.dart";
 import 'dart:async';
 import 'event_helper.dart';
 
 void testMultiController() {
   // Test normal flow.
   var c = new StreamController(sync: true);
   Events expectedEvents = new Events()
       ..add(42)
       ..add("dibs")
       ..error("error!")
       ..error("error too!")
       ..close();
-  Events actualEvents = new Events.capture(c.stream.asBroadcastStream());
+  CaptureEvents actualEvents = new Events.capture(c.stream.asBroadcastStream());

[Lasse Reichstein Nielsen, 2013/11/01 09:37:36]

Ah, due to using the subscription field.

[floitsch, 2013/11/01 16:57:25]

yes.

   expectedEvents.replay(c);
   Expect.listEquals(expectedEvents.events, actualEvents.events);
 
   // Test automatic unsubscription on error.
   c = new StreamController(sync: true);
   expectedEvents = new Events()..add(42)..error("error");
   actualEvents = new Events.capture(c.stream.asBroadcastStream(),
                                     cancelOnError: true);
   Events sentEvents =
       new Events()..add(42)..error("error")..add("Are you there?");
@@ skipping 128 matching lines @@
 
 testSingleController() {
   // Test normal flow.
   var c = new StreamController(sync: true);
   Events expectedEvents = new Events()
       ..add(42)
       ..add("dibs")
       ..error("error!")
       ..error("error too!")
       ..close();
-  Events actualEvents = new Events.capture(c.stream);
+  CaptureEvents actualEvents = new Events.capture(c.stream);
   expectedEvents.replay(c);
   Expect.listEquals(expectedEvents.events, actualEvents.events);
 
   // Test automatic unsubscription on error.
   c = new StreamController(sync: true);
   expectedEvents = new Events()..add(42)..error("error");
   actualEvents = new Events.capture(c.stream, cancelOnError: true);
   Events sentEvents =
       new Events()..add(42)..error("error")..add("Are you there?");
   sentEvents.replay(c);
@@ skipping 255 matching lines @@
   Expect.equals(c.stream, c.stream);
 }
 
 main() {
   testMultiController();
   testSingleController();
   testExtraMethods();
   testClosed();
   testStreamEquals();
 }