Stop sending unwanted status and fix integration tests

pkg/analysis_server/test/integration/integration_tests.dart

Index: pkg/analysis_server/test/integration/integration_tests.dart
diff --git a/pkg/analysis_server/test/integration/integration_tests.dart b/pkg/analysis_server/test/integration/integration_tests.dart
index a2bd8cc33fe8528196a26ff372b4306dbc29735a..1970ab1129fc68ccb9f3313e3aebf7e7f36e575c 100644
--- a/pkg/analysis_server/test/integration/integration_tests.dart
+++ b/pkg/analysis_server/test/integration/integration_tests.dart
@@ -119,7 +119,7 @@ abstract class AbstractAnalysisServerIntegrationTest extends
     // SERVER_STATUS (e.g. using sendServerSetSubscriptions(['STATUS']))
     expect(_subscribedToServerStatus, isTrue);
     subscription = onServerStatus.listen((ServerStatusParams params) {
-      if (!params.analysis.isAnalyzing) {
+      if (params.analysis != null && !params.analysis.isAnalyzing) {
         completer.complete(params);
         subscription.cancel();
       }