|  | library; | 
|  | // | 
|  | // Problems in library: | 
|  | // | 
|  | // pkg/front_end/testcases/general_nnbd_opt_out/issue37776.dart:13:7: Error: 'X' is already declared in this scope. | 
|  | // class X { | 
|  | //       ^ | 
|  | // pkg/front_end/testcases/general_nnbd_opt_out/issue37776.dart:9:7: Context: Previous declaration of 'X'. | 
|  | // class X { | 
|  | //       ^ | 
|  | // | 
|  | // pkg/front_end/testcases/general_nnbd_opt_out/issue37776.dart:18:9: Error: Method not found: 'X.foo'. | 
|  | //   const X.foo(); | 
|  | //         ^^^ | 
|  | // | 
|  | import self as self; | 
|  | import "dart:core" as core; | 
|  |  | 
|  | class X#1 extends core::Object /*hasConstConstructor*/  { | 
|  | const constructor foo() → self::X#1* | 
|  | : 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 X extends core::Object /*hasConstConstructor*/  { | 
|  | const constructor foo() → self::X* | 
|  | : 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 | 
|  | } | 
|  | static method main() → void { | 
|  | invalid-expression "pkg/front_end/testcases/general_nnbd_opt_out/issue37776.dart:18:9: Error: Method not found: 'X.foo'. | 
|  | const X.foo(); | 
|  | ^^^"; | 
|  | } |