pkg/front_end/testcases/extension_types/issue53803.dart.textual_outline_modelled.expect

class Class<X> {}

extension type E1<X>(Class<Never> foo) implements Class<Function(X)> {}

extension type E10<X>(Object? foo) implements ExtensionType<X Function(X)> {}

extension type E11<X>(Object? foo)
    implements ExtensionType<X Function(Function(X))> {}

extension type E12<X>(Object? foo)
    implements ExtensionType<X Function(Function(Function(X)))> {}

extension type E2<X>(Class<Never> foo)
    implements Class<Function(Function(X))> {}

extension type E3<X>(Class<Never> foo)
    implements Class<Function(Function(Function(X)))> {}

extension type E4<X>(Class<Never> foo) implements Class<X Function(X)> {}

extension type E5<X>(Class<Never> foo)
    implements Class<X Function(Function(X))> {}

extension type E6<X>(Class<Never> foo)
    implements Class<X Function(Function(Function(X)))> {}

extension type E7<X>(Object? foo) implements ExtensionType<Function(X)> {}

extension type E8<X>(Object? foo)
    implements ExtensionType<Function(Function(X))> {}

extension type E9<X>(Object? foo)
    implements ExtensionType<Function(Function(Function(X)))> {}

extension type ExtensionType<X>(Object? foo) {}