Allow sending duplicate notifications.

pkg/analysis_server/test/analysis_server_test.dart

Index: pkg/analysis_server/test/analysis_server_test.dart
diff --git a/pkg/analysis_server/test/analysis_server_test.dart b/pkg/analysis_server/test/analysis_server_test.dart
index efd1c168215d404060b5d41b5237a28a0b903817..daba3fdb8bc761b9036911e1cc7b17b90e422ca6 100644
--- a/pkg/analysis_server/test/analysis_server_test.dart
+++ b/pkg/analysis_server/test/analysis_server_test.dart
@@ -283,53 +283,6 @@ import "../foo/foo.dart";
     expect(source.fullName, filePath);
   }
 
-  /**
-   * Test that having multiple analysis contexts analyze the same file doesn't
-   * cause that file to receive duplicate notifications when it's modified.
-   */
-  Future test_no_duplicate_notifications() async {
-    // Subscribe to STATUS so we'll know when analysis is done.
-    server.serverServices = [ServerService.STATUS].toSet();
-    resourceProvider.newFolder('/foo');
-    resourceProvider.newFolder('/bar');
-    resourceProvider.newFile('/foo/foo.dart', 'import "../bar/bar.dart";');
-    File bar = resourceProvider.newFile('/bar/bar.dart', 'library bar;');
-    server.setAnalysisRoots('0', ['/foo', '/bar'], [], {});
-    Map<AnalysisService, Set<String>> subscriptions =
-        <AnalysisService, Set<String>>{};
-    for (AnalysisService service in AnalysisService.VALUES) {
-      subscriptions[service] = <String>[bar.path].toSet();
-    }
-    server.setAnalysisSubscriptions(subscriptions);
-    await pumpEventQueue(100);
-    expect(server.statusAnalyzing, isFalse);
-    channel.notificationsReceived.clear();
-    server.updateContent(
-        '0', {bar.path: new AddContentOverlay('library bar; void f() {}')});
-    await pumpEventQueue(100);
-    expect(server.statusAnalyzing, isFalse);
-    expect(channel.notificationsReceived, isNotEmpty);
-    Set<String> notificationTypesReceived = new Set<String>();
-    for (Notification notification in channel.notificationsReceived) {
-      String notificationType = notification.event;
-      switch (notificationType) {
-        case 'server.status':
-        case 'analysis.errors':
-          // It's normal for these notifications to be sent multiple times.
-          break;
-        case 'analysis.outline':
-          // It's normal for this notification to be sent twice.
-          // TODO(paulberry): why?
-          break;
-        default:
-          if (!notificationTypesReceived.add(notificationType)) {
-            fail('Notification type $notificationType received more than once');
-          }
-          break;
-      }
-    }
-  }
-
   test_operationsRemovedOnContextDisposal() async {
     resourceProvider.newFolder('/foo');
     resourceProvider.newFile('/foo/baz.dart', 'library lib;');