|  | library opted_out_lib; | 
|  | import self as self; | 
|  | import "dart:core" as core; | 
|  | import "issue41498b_lib.dart" as iss; | 
|  |  | 
|  | import "org-dartlang-testcase:///issue41498b_lib.dart" as opt_in; | 
|  |  | 
|  | typedef LegacyFoo = () →* void; | 
|  | class C extends core::Object { | 
|  | synthetic constructor •() → self::C* | 
|  | : super core::Object::•() | 
|  | ; | 
|  | static method test() → void { | 
|  | () →* void f; | 
|  | f.{core::Object::toString}(); | 
|  | } | 
|  | method test2() → void { | 
|  | () →* void f; | 
|  | f.{core::Object::toString}(); | 
|  | } | 
|  | 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 | 
|  | } | 
|  | static method test() → dynamic { | 
|  | () →* void f; | 
|  | f.{core::Object::toString}(); | 
|  | core::Function* foo = () → Null { | 
|  | () →* void f; | 
|  | f.{core::Object::toString}(); | 
|  | }; | 
|  | self::C::test(); | 
|  | new self::C::•().{self::C::test2}(); | 
|  | } | 
|  | static method main() → dynamic { | 
|  | iss::main(); | 
|  | } | 
|  |  | 
|  | library /*isNonNullableByDefault*/; | 
|  | // | 
|  | // Problems in library: | 
|  | // | 
|  | // pkg/front_end/testcases/nnbd_mixed/issue41498b_lib.dart:11:5: Error: Non-nullable variable 'f' must be assigned before it can be used. | 
|  | //     f.toString(); // error | 
|  | //     ^ | 
|  | // | 
|  | // pkg/front_end/testcases/nnbd_mixed/issue41498b_lib.dart:17:5: Error: Non-nullable variable 'f' must be assigned before it can be used. | 
|  | //     f.toString(); // error | 
|  | //     ^ | 
|  | // | 
|  | // pkg/front_end/testcases/nnbd_mixed/issue41498b_lib.dart:24:3: Error: Non-nullable variable 'f' must be assigned before it can be used. | 
|  | //   f.toString(); // error | 
|  | //   ^ | 
|  | // | 
|  | // pkg/front_end/testcases/nnbd_mixed/issue41498b_lib.dart:29:5: Error: Non-nullable variable 'f' must be assigned before it can be used. | 
|  | //     f.toString(); // error | 
|  | //     ^ | 
|  | // | 
|  | import self as iss; | 
|  | import "dart:core" as core; | 
|  |  | 
|  | import "org-dartlang-testcase:///issue41498b.dart"; | 
|  |  | 
|  | class C extends core::Object { | 
|  | synthetic constructor •() → iss::C | 
|  | : super core::Object::•() | 
|  | ; | 
|  | static method test() → void { | 
|  | () → void f; | 
|  | (let final<BottomType> #t1 = invalid-expression "pkg/front_end/testcases/nnbd_mixed/issue41498b_lib.dart:11:5: Error: Non-nullable variable 'f' must be assigned before it can be used. | 
|  | f.toString(); // error | 
|  | ^" in f).{core::Object::toString}(); | 
|  | } | 
|  | method test2() → void { | 
|  | () → void f; | 
|  | (let final<BottomType> #t2 = invalid-expression "pkg/front_end/testcases/nnbd_mixed/issue41498b_lib.dart:17:5: Error: Non-nullable variable 'f' must be assigned before it can be used. | 
|  | f.toString(); // error | 
|  | ^" in f).{core::Object::toString}(); | 
|  | } | 
|  | } | 
|  | static method test() → dynamic { | 
|  | () → void f; | 
|  | (let final<BottomType> #t3 = invalid-expression "pkg/front_end/testcases/nnbd_mixed/issue41498b_lib.dart:24:3: Error: Non-nullable variable 'f' must be assigned before it can be used. | 
|  | f.toString(); // error | 
|  | ^" in f).{core::Object::toString}(); | 
|  | core::Function foo = () → Null { | 
|  | () → void f; | 
|  | (let final<BottomType> #t4 = invalid-expression "pkg/front_end/testcases/nnbd_mixed/issue41498b_lib.dart:29:5: Error: Non-nullable variable 'f' must be assigned before it can be used. | 
|  | f.toString(); // error | 
|  | ^" in f).{core::Object::toString}(); | 
|  | }; | 
|  | iss::C::test(); | 
|  | new iss::C::•().{iss::C::test2}(); | 
|  | } | 
|  | static method main() → dynamic {} |