Don't assume that we always have a HowToFix and remove failing test.

pkg/compiler/lib/src/resolution/members.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library dart2js.resolution.members;
 
 import '../common.dart';
 import '../common/names.dart' show
     Selectors;
 import '../common/resolution.dart' show
@@ skipping 1007 matching lines @@
     Element target = currentClass.lookupSuperByName(name);
     // [target] may be null which means invoking noSuchMethod on super.
     if (target == null) {
       if (alternateName != null) {
         target = currentClass.lookupSuperByName(alternateName);
       }
       Element error;
       if (selector.isSetter) {
         error = reportAndCreateErroneousElement(
           node, name.text, MessageKind.UNDEFINED_SUPER_SETTER,
-          {'className': currentClass.name, 'name': name});
+          {'className': currentClass.name, 'memberName': name});
       } else {
         error = reportAndCreateErroneousElement(
           node, name.text, MessageKind.NO_SUCH_SUPER_MEMBER,
           {'className': currentClass.name, 'memberName': name});
       }
       if (target == null) {
         // If a setter wasn't resolved, use the [ErroneousElement].
         target = error;
       }
       // We still need to register the invocation, because we might
@@ skipping 3831 matching lines @@
     }
     return const NoneResult();
   }
 }
 
 /// Looks up [name] in [scope] and unwraps the result.
 Element lookupInScope(DiagnosticReporter reporter, Node node,
                       Scope scope, String name) {
   return Elements.unwrap(scope.lookup(name), reporter, node);
 }