| library; | 
 | // | 
 | // Problems in library: | 
 | // | 
 | // pkg/front_end/testcases/enhanced_enums/declared_equals.dart:8:16: Error: An enum can't declare a non-abstract member named '=='. | 
 | //   bool operator==(Object other) => true; // Error. | 
 | //                ^^ | 
 | // | 
 | import self as self; | 
 | import "dart:core" as core; | 
 |  | 
 | class E1 extends core::_Enum /*isEnum*/  { | 
 |   enum-element static const field self::E1 element = const self::E1::•(0, "element"); | 
 |   static const field core::List<self::E1> values = const <self::E1>[self::E1::element]; | 
 |   const synthetic constructor •(core::int #index, core::String #name) → self::E1 | 
 |     : super core::_Enum::•(#index, #name) | 
 |     ; | 
 |   method core::_enumToString() → core::String | 
 |     return "E1.${this.{core::_Enum::_name}{core::String}}"; | 
 |   operator ==(core::Object other) → core::bool | 
 |     ; | 
 | } | 
 | class E2 extends core::_Enum /*isEnum*/  { | 
 |   enum-element static const field self::E2 element = const self::E2::•(0, "element"); | 
 |   static const field core::List<self::E2> values = const <self::E2>[self::E2::element]; | 
 |   const synthetic constructor •(core::int #index, core::String #name) → self::E2 | 
 |     : super core::_Enum::•(#index, #name) | 
 |     ; | 
 |   method core::_enumToString() → core::String | 
 |     return "E2.${this.{core::_Enum::_name}{core::String}}"; | 
 |   abstract operator ==(core::Object other) → core::bool; | 
 | } | 
 | abstract class I3 extends core::Object { | 
 |   synthetic constructor •() → self::I3 | 
 |     ; | 
 |   abstract operator ==(core::Object other) → core::bool; | 
 | } | 
 | class E3 extends core::_Enum implements self::I3 /*isEnum*/  { | 
 |   enum-element static const field self::E3 element = const self::E3::•(0, "element"); | 
 |   static const field core::List<self::E3> values = const <self::E3>[self::E3::element]; | 
 |   const synthetic constructor •(core::int #index, core::String #name) → self::E3 | 
 |     : super core::_Enum::•(#index, #name) | 
 |     ; | 
 |   method core::_enumToString() → core::String | 
 |     return "E3.${this.{core::_Enum::_name}{core::String}}"; | 
 | } | 
 | static method main() → dynamic | 
 |   ; | 
 |  | 
 |  | 
 | Extra constant evaluation status: | 
 | Evaluated: ConstructorInvocation @ org-dartlang-testcase:///declared_equals.dart:6:3 -> InstanceConstant(const E1{_Enum.index: 0, _Enum._name: "element"}) | 
 | Evaluated: ListLiteral @ org-dartlang-testcase:///declared_equals.dart:5:6 -> ListConstant(const <E1>[const E1{_Enum.index: 0, _Enum._name: "element"}]) | 
 | Evaluated: ConstructorInvocation @ org-dartlang-testcase:///declared_equals.dart:12:3 -> InstanceConstant(const E2{_Enum.index: 0, _Enum._name: "element"}) | 
 | Evaluated: ListLiteral @ org-dartlang-testcase:///declared_equals.dart:11:6 -> ListConstant(const <E2>[const E2{_Enum.index: 0, _Enum._name: "element"}]) | 
 | Evaluated: ConstructorInvocation @ org-dartlang-testcase:///declared_equals.dart:21:25 -> InstanceConstant(const E3{_Enum.index: 0, _Enum._name: "element"}) | 
 | Evaluated: ListLiteral @ org-dartlang-testcase:///declared_equals.dart:21:6 -> ListConstant(const <E3>[const E3{_Enum.index: 0, _Enum._name: "element"}]) | 
 | Extra constant evaluation: evaluated: 21, effectively constant: 6 |