// Changed when traits were introduced. May not make sense any more

open class Base() {
    public var v : Int = 0
}

open class Left() : Base() {}
trait Right : Base {}

class D() : Left(), Right

fun vl(l : Left) : Int = l.v
fun vr(r : Right) : Int = r.v

fun box() : String {
    val d = D()
    d.v = 42

    if (d.v != 42) return "Fail #1"
    if (vl(d) != 42) return "Fail #2"
    if (vr(d) != 42) return "Fail #3"

    return "OK"
}