class A {
  late ;
  final int foo = 42;
  const A();
}
class B {
  late ;
  final int foo = 42;
  late ;
  final String bar = "foobar";
  const B();
}
class C {
  late ;
  final int foo = 42;
  const C();
  const C.another();
}
class D {
  late ;
  final int foo = 42;
  late ;
  final String bar = "foobar";
  const D();
  const D.another();
}
main() {}