| library; | 
 | import self as self; | 
 | import "dart:core" as core; | 
 |  | 
 | abstract class A<T extends core::Object? = dynamic> extends core::Object { | 
 |   synthetic constructor •() → self::A<self::A::T%> | 
 |     : super core::Object::•() | 
 |     ; | 
 |   abstract method foo(covariant-by-class self::A::T% x) → dynamic; | 
 | } | 
 | abstract class B<T extends core::Object? = dynamic> extends core::Object implements self::A<self::B::T%> /*isMixinDeclaration*/  { | 
 | } | 
 | class C extends core::Object { | 
 |   synthetic constructor •() → self::C | 
 |     : super core::Object::•() | 
 |     ; | 
 |   method foo(core::num x) → dynamic {} | 
 | } | 
 | abstract class _D&C&B<T extends core::num> = self::C with self::B<self::_D&C&B::T> /*isAnonymousMixin*/  { | 
 |   synthetic constructor •() → self::_D&C&B<self::_D&C&B::T> | 
 |     : super self::C::•() | 
 |     ; | 
 |   forwarding-stub method foo(covariant-by-class core::num x) → dynamic | 
 |     return super.{self::C::foo}(x); | 
 | } | 
 | class D<T extends core::num> extends self::_D&C&B<self::D::T> { | 
 |   synthetic constructor •() → self::D<self::D::T> | 
 |     : super self::_D&C&B::•() | 
 |     ; | 
 | } | 
 | class E<T extends core::num> = self::C with self::B<self::E::T> { | 
 |   synthetic constructor •() → self::E<self::E::T> | 
 |     : super self::C::•() | 
 |     ; | 
 |   forwarding-stub method foo(covariant-by-class core::num x) → dynamic | 
 |     return super.{self::C::foo}(x); | 
 | } | 
 | static method main() → dynamic {} |