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

class A<X extends core::Object = dynamic> extends core::Object {
  synthetic constructor •() → self::A<self::A::X>
    ;
}
abstract class _B&Object&A<Z extends core::Object = dynamic> = core::Object with self::A<() → self::_B&Object&A::Z> {
  const synthetic constructor •() → self::_B&Object&A<self::_B&Object&A::Z>
    : super core::Object::•()
    ;
}
class B<Z extends core::Object = dynamic> extends self::_B&Object&A<self::B::Z> {
  synthetic constructor •() → self::B<self::B::Z>
    ;
}
static method main() → dynamic
  ;