Error Suppression FTW.

pkg/analyzer/test/src/task/options_test.dart

Index: pkg/analyzer/test/src/task/options_test.dart
diff --git a/pkg/analyzer/test/src/task/options_test.dart b/pkg/analyzer/test/src/task/options_test.dart
index bf58d00cef58a0a5bed0550209dbe47b58d7aeae..764dfeefde0eec6dafb567b22962bdd430830881 100644
--- a/pkg/analyzer/test/src/task/options_test.dart
+++ b/pkg/analyzer/test/src/task/options_test.dart
@@ -147,6 +147,16 @@ analyzer:
         []);
   }
 
+  test_analyzer_supported_filter() {
+    validate(
+        '''
+analyzer:
+  errors:
+    unused_local_variable: ignore
+    ''',
+        []);
+  }
+
   test_analyzer_supported_strong_mode() {
     validate(
         '''