FILE: nullability.kt
    public? final? fun orFourtyTwo(arg: Int?): <implicit> {
        ^orFourtyTwo when (lval <elvis>: <implicit> = arg#) {
            ==($subj$, Null(null)) ->  {
                IntegerLiteral(42)
            }
            else ->  {
                R|<local>/<elvis>|
            }
        }

    }
    public? final? fun bang(arg: Int?): <implicit> {
        ^bang arg#!!
    }
