code completion for dynamic type elements

pkg/analysis_server/test/services/search/hierarchy_test.dart

Index: pkg/analysis_server/test/services/search/hierarchy_test.dart
diff --git a/pkg/analysis_server/test/services/search/hierarchy_test.dart b/pkg/analysis_server/test/services/search/hierarchy_test.dart
index bc52d0d053eeb75291e2079a83560d34b782b4eb..1dad0995bf2e056b864f2ae0283ef051e9095060 100644
--- a/pkg/analysis_server/test/services/search/hierarchy_test.dart
+++ b/pkg/analysis_server/test/services/search/hierarchy_test.dart
@@ -218,14 +218,16 @@ class B extends A {
     {
       ClassElement classA = findElement('A');
       List<Element> members = getMembers(classA);
-      expect(members.map((e) => e.name), unorderedEquals(['ma1', 'ma2', '==']));
+      expect(
+          members.map((e) => e.name),
+          unorderedEquals(['ma1', 'ma2', '==', 'toString']));
     }
     {
       ClassElement classB = findElement('B');
       List<Element> members = getMembers(classB);
       expect(
           members.map((e) => e.name),
-          unorderedEquals(['mb1', 'mb2', 'ma1', 'ma2', '==']));
+          unorderedEquals(['mb1', 'mb2', 'ma1', 'ma2', '==', 'toString']));
     }
   }