| // Copyright (c) 2018, 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. | |
| // @dart=2.9 | |
| class I<X> {} | |
| class J<X> {} | |
| class M0<X, Y> extends I<X> with J<Y> {} | |
| class M1 implements I<int> {} | |
| class M2 extends M1 implements J<double> {} | |
| // M0 is inferred as M0<int, double> | |
| class A extends M2 with M0 {} | |
| main() {} |