Transitively include outlines of all public members of Class(es).

pkg/front_end/testcases/shaker/target_class_constructor.dart

Index: pkg/front_end/testcases/shaker/target_class_constructor.dart
diff --git a/pkg/front_end/testcases/shaker/transitive_superclass_lib.dart b/pkg/front_end/testcases/shaker/target_class_constructor.dart
similarity index 72%
copy from pkg/front_end/testcases/shaker/transitive_superclass_lib.dart
copy to pkg/front_end/testcases/shaker/target_class_constructor.dart
index c89598bc1729a6473c7087db2666b49faeec432e..1f0d891c24584a5fa3daa58b6c29fb9234393d60 100644
--- a/pkg/front_end/testcases/shaker/transitive_superclass_lib.dart
+++ b/pkg/front_end/testcases/shaker/target_class_constructor.dart
@@ -2,8 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE.md file.
 
-class _A {}
+import 'target_class_constructor_lib.dart';
 
-class B extends _A {}
-
-class C extends B {}
+main() {
+  new B.namedConstructor();
+}