final isLegacySubtyping1a = const <Null>[] is List<int>;
const isLegacySubtyping1b = const <Null>[] is List<int>;
final isLegacySubtyping2a = const <int?>[] is List<int>;
const isLegacySubtyping2b = const <int?>[] is List<int>;
final assertLegacySubtyping1a = const <Null>[] as List<int>;
const assertLegacySubtyping1b = const <Null>[] as List<int>;
final assertLegacySubtyping2a = const <int?>[] as List<int>;
const assertLegacySubtyping2b = const <int?>[] as List<int>;
void main() {}
expect(expected, actual) {}