class Outer() {
  public val s = "xyzzy"

  open class InnerBase(public val name: String) {
  }

  class InnerDerived(): InnerBase(s) {
  }

  public val x = InnerDerived()
}

fun box() : String {
  val o = Outer()
  return if (o.x.name != "xyzzy") "fail" else "OK"
}