Trigger re-analysis when a file changes on disk.

pkg/analysis_server/test/test_all.dart

Index: pkg/analysis_server/test/test_all.dart
diff --git a/pkg/analysis_server/test/test_all.dart b/pkg/analysis_server/test/test_all.dart
index 6123ae2252c575522e69bbe9a4ef0b5cb36234d8..9abe7439e305be7fa3a44165efc1ad51f1f5757c 100644
--- a/pkg/analysis_server/test/test_all.dart
+++ b/pkg/analysis_server/test/test_all.dart
@@ -8,6 +8,7 @@ import 'analysis_notification_navigation_test.dart' as analysis_notification_nav
 import 'analysis_notification_outline_test.dart' as analysis_notification_outline_test;
 import 'analysis_server_test.dart' as analysis_server_test;
 import 'channel_test.dart' as channel_test;
+import 'context_directory_manager_test.dart' as context_directory_manager_test;
 import 'domain_analysis_test.dart' as domain_analysis_test;
 import 'domain_completion_test.dart' as domain_completion_test;
 import 'domain_edit_test.dart' as domain_edit_test;
@@ -29,6 +30,7 @@ main() {
     analysis_notification_outline_test.main();
     analysis_server_test.main();
     channel_test.main();
+    context_directory_manager_test.main();
     domain_analysis_test.main();
     domain_completion_test.main();
     domain_edit_test.main();