pkg/front_end/testcases/general/interface_contravariant_from_class.dart.textual_outline.expect

// @dart = 2.9
library test;

typedef void F<T>(T t);

class B<T> {
  T f(int x) {}
}

abstract class I<T> {
  T f(Object x);
}

abstract class C<T> extends B<F<T>> implements I<F<T>> {}

void main() {}