pkg/unittest: Removed references to expectAsync[Until]X in docs

pkg/unittest/test/unittest_test_utils.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.
 
 part of unittestTest;
 
 Future _defer(void fn()) {
   return new Future.sync(fn);
 }
 
@@ skipping 40 matching lines @@
     _result = buildStatusString(passed, failed, errors, results,
         count: count, setup: setup, teardown: teardown,
         uncaughtError: uncaughtError);
   }
 
   void onDone(bool success) {
     _port.send(_result);
   }
 }
 
-makeDelayedSetup(index, s) => () {
+Function makeDelayedSetup(index, s) => () {
   return new Future.delayed(new Duration(milliseconds: 1), () {
     s.write('l$index U ');
   });
 };
 
-makeDelayedTeardown(index, s) => () {
+Function makeDelayedTeardown(index, s) => () {
   return new Future.delayed(new Duration(milliseconds: 1), () {
     s.write('l$index D ');
   });
 };
 
-makeImmediateSetup(index, s) => () {
+Function makeImmediateSetup(index, s) => () {
   s.write('l$index U ');
 };
 
-makeImmediateTeardown(index, s) => () {
+Function makeImmediateTeardown(index, s) => () {
   s.write('l$index D ');
 };
 
-runTestInIsolate(sendport) {
+void runTestInIsolate(sendport) {
   var testConfig = new TestConfiguration(sendport);
   unittestConfiguration = testConfig;
   testFunction(testConfig);
 }
 
-main() {
+void main() {
   var replyPort = new ReceivePort();
   Isolate.spawn(runTestInIsolate, replyPort.sendPort);
   replyPort.first.then((String msg) {
     expect(msg.trim(), expected);
   });
 }