Fix scheduled_server_test to not timeout-fail.

pkg/scheduled_test/lib/scheduled_server.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.
 
 library scheduled_test.scheduled_server;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:io';
 
@@ skipping 60 matching lines @@
   /// The request must be received at the point in the schedule at which
   /// [handle] was called, or in the task immediately prior (to allow for
   /// non-deterministic asynchronicity). Otherwise, an error will be thrown.
   void handle(String method, String path, ScheduledHandler fn) {
     var handler = new Handler(this, method, path, fn);
     _handlers.add(handler);
     schedule(() {
       handler.ready = true;
       return handler.result.catchError((e) {
         // Close the server so that we don't leave a dangling request.
-        _server.then((s) => s.close());
+        _server.then((s) => s.close(force: true));
         throw e;
       });
     }, "'$description' waiting for $method $path");
   }
 
   /// The handler for incoming [HttpRequest]s to this server. This dispatches
   /// the request to the first handler in the queue. It's that handler's
   /// responsibility to check that the method/path are correct and that it's
   /// being run at the correct time.
   void _handleRequest(HttpRequest request) {
     wrapFuture(new Future.sync(() {
       if (_handlers.isEmpty) {
         fail("'$description' received ${request.method} ${request.uri.path} "
              "when no more requests were expected.");
       }
       return _handlers.removeFirst().fn(request);
     }).catchError((e) {
       // Close the server so that we don't leave a dangling request.
-      _server.then((s) => s.close());
+      _server.then((s) => s.close(force: true));
       throw e;
     }), 'receiving ${request.method} ${request.uri}');
   }
 }