// 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 = 2.7

/*spec:nnbd-off.class: C:direct,explicit=[C.T,C<String>],needsArgs*/
/*prod:nnbd-off.class: C:*/
class C<T> {
  T field;
}

main() {
  implicitAs(new C<String>());
}

C<String> implicitAs(C<String> i) {
  dynamic j = i;
  return j;
}
