// 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.

import 'package:expect/expect.dart';

abstract class A {
  m<X, Y>();
}

class B implements A {
  noSuchMethod(Invocation i) {
    return [i.typeArguments[0], i.typeArguments[1]];
  }
}

void main() {
  A x = new B();
  Expect.listEquals([int, String], x.m<int, String>());
}
