pkg/front_end/testcases/nnbd_mixed/hierarchy/covariant_equals.dart.textual_outline_modelled.expect

// @dart = 2.9
class A {
  bool operator ==(covariant A other) => true;
}

class B extends A {
  bool operator ==(other) => true;
}

class C<T> {
  bool operator ==(covariant C<T> other) => true;
}

class D extends C<int> {}

main() {}