Port and test more assists.

pkg/analysis_services/test/search/hierarchy_test.dart

Index: pkg/analysis_services/test/search/hierarchy_test.dart
diff --git a/pkg/analysis_services/test/search/hierarchy_test.dart b/pkg/analysis_services/test/search/hierarchy_test.dart
index da7d085bd45468bc1f37f030ac1823208ea73304..aae0157c74a81c7bb02942ac15dc58f72fa6d208 100644
--- a/pkg/analysis_services/test/search/hierarchy_test.dart
+++ b/pkg/analysis_services/test/search/hierarchy_test.dart
@@ -223,14 +223,14 @@ 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', '==']));
     }
     {
       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', '==']));
     }
   }