|  | // Copyright (c) 2013, 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. | 
|  |  | 
|  | // Test for F-Bounded Quantification. Regression test for issue 9291. | 
|  |  | 
|  | class Entities<T extends ConceptEntity<T>> implements EntitiesApi<T> {} | 
|  |  | 
|  | class ConceptEntity<T extends ConceptEntity<T>> implements EntityApi<T> {} | 
|  |  | 
|  | abstract class EntityApi<T extends EntityApi<T>> {} | 
|  |  | 
|  | abstract class EntitiesApi<T extends EntityApi<T>> {} | 
|  |  | 
|  | class Concept extends ConceptEntity<Concept> {} | 
|  |  | 
|  | main() { | 
|  | new ConceptEntity<Concept>(); | 
|  | } |