anchor.diff:      new Future(() => responseController.add(response));
     }
   
  -  /**
  -   * Return a future that will complete when a response associated with the
  -   * given [request] has been received. The value of the future will be the
  -   * received response. If [throwOnError] is `true` (the default) then the
  -   * returned future will throw an exception if a server error is reported
  -   * before the response has been received.
  -   *
  -   * Unlike [sendRequest], this method assumes that the [request] has already
  -   * been sent to the server.
  -   */
  +  /// Return a future that will complete when a response associated with the
  +  /// given [request] has been received. The value of the future will be the
  +  /// received response. If [throwOnError] is `true` (the default) then the
  +  /// returned future will throw an exception if a server error is reported
  +  /// before the response has been received.
  +  ///
  +  /// Unlike [sendRequest], this method assumes that the [request] has already
  +  /// been sent to the server.
     Future<Response> waitForResponse(Request request,
         {bool throwOnError = true}) {
       // TODO(brianwilkerson) Attempt to remove the `throwOnError` parameter and
  
positive.code:     notificationController.add(notification);
    }
  
    /**
     * Send the given [request] to the server and return a future that will
     * complete when a response associated with the [request] has been received.
     * The value of the future will be the received response. If [throwOnError] is
     * `true` (the default) then the returned future will throw an exception if a
     * server error is reported before the response has been received.
     */
    Future<Response> sendRequest(Request request, {bool throwOnError = true}) {
      // TODO(brianwilkerson) Attempt to remove the `throwOnError` parameter and
      // have the default behavior be the only behavior.
  
negative.code: import 'package:test/test.dart';
  import 'package:watcher/watcher.dart';
  
  /// A mock [ServerCommunicationChannel] for testing [AnalysisServer].
  class MockServerChannel implements ServerCommunicationChannel {
    StreamController<Request> requestController = new StreamController<Request>();
    StreamController<Response> responseController =
  