| library; | 
 | // | 
 | // Problems in library: | 
 | // | 
 | // pkg/front_end/testcases/general/undefined_getter_in_compound_assignment.dart:11:5: Error: The getter 'x' isn't defined for the class 'C'. | 
 | //  - 'C' is from 'pkg/front_end/testcases/general/undefined_getter_in_compound_assignment.dart'. | 
 | // Try correcting the name to the name of an existing getter, or defining a getter or field named 'x'. | 
 | //   c.x += 1; | 
 | //     ^ | 
 | // | 
 | // pkg/front_end/testcases/general/undefined_getter_in_compound_assignment.dart:12:5: Error: The getter 'x' isn't defined for the class 'C'. | 
 | //  - 'C' is from 'pkg/front_end/testcases/general/undefined_getter_in_compound_assignment.dart'. | 
 | // Try correcting the name to the name of an existing getter, or defining a getter or field named 'x'. | 
 | //   c.x ??= 1; | 
 | //     ^ | 
 | // | 
 | import self as self; | 
 | import "dart:core" as core; | 
 |  | 
 | class C extends core::Object { | 
 |   synthetic constructor •() → self::C* | 
 |     : super core::Object::•() | 
 |     ; | 
 |   set x(dynamic value) → void {} | 
 |   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(self::C* c) → void { | 
 |   c.{self::C::x} = 1; | 
 |   let final self::C* #t1 = c in #t1.{self::C::x} = invalid-expression "pkg/front_end/testcases/general/undefined_getter_in_compound_assignment.dart:11:5: Error: The getter 'x' isn't defined for the class 'C'. | 
 |  - 'C' is from 'pkg/front_end/testcases/general/undefined_getter_in_compound_assignment.dart'. | 
 | Try correcting the name to the name of an existing getter, or defining a getter or field named 'x'. | 
 |   c.x += 1; | 
 |     ^".+(1); | 
 |   let final self::C* #t2 = c in invalid-expression "pkg/front_end/testcases/general/undefined_getter_in_compound_assignment.dart:12:5: Error: The getter 'x' isn't defined for the class 'C'. | 
 |  - 'C' is from 'pkg/front_end/testcases/general/undefined_getter_in_compound_assignment.dart'. | 
 | Try correcting the name to the name of an existing getter, or defining a getter or field named 'x'. | 
 |   c.x ??= 1; | 
 |     ^".{core::Object::==}(null) ?{dynamic} #t2.{self::C::x} = 1 : null; | 
 | } | 
 | static method main() → dynamic {} |