library test; import self as self; import "dart:core" as core; class B extends core::Object { synthetic constructor •() → self::B* : super core::Object::•() ; abstract member-signature get _identityHashCode() → core::int*; -> core::Object::_identityHashCode abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse abstract member-signature operator ==(dynamic other) → core::bool*; -> core::Object::== abstract member-signature get hashCode() → core::int*; -> core::Object::hashCode abstract member-signature method toString() → core::String*; -> core::Object::toString abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod abstract member-signature get runtimeType() → core::Type*; -> core::Object::runtimeType } class C extends self::B { field dynamic z = null; synthetic constructor •() → self::C* : super self::B::•() ; } static method test(self::B* x) → void { self::C* y = x is self::C* ?{self::C*} x{self::C*} : new self::C::•(); core::print(y.{self::C::z}); } static method main() → dynamic {}