library;
import self as self;
import "dart:core" as core;

class A extends core::Object {
  synthetic constructor •() → self::A*
    ;
}
class C<T extends self::A* = dynamic> extends core::Object {
  generic-covariant-impl field self::C::T* _field;
  synthetic constructor •() → self::C<self::C::T*>*
    ;
  method foo(generic-covariant-impl self::C::T* x) → dynamic
    ;
}
class D extends self::C<self::B*> {
  synthetic constructor •() → self::D*
    ;
}
abstract class _Foo&Object&C = core::Object with self::C<self::B*> {
  synthetic constructor •() → self::_Foo&Object&C*
    : super core::Object::•()
    ;
}
class Foo extends self::_Foo&Object&C {
  synthetic constructor •() → self::Foo*
    ;
}
class B extends self::A {
  synthetic constructor •() → self::B*
    ;
}
static method main() → dynamic
  ;