kotlin-fork/backend.native/tests/external/codegen/box/increment/prefixIncrementOnSmartCast.kt

public fun box() : String {
    var i : Int?
    i = 10
    // Prefix increment on a smart cast should work
    val j = ++i

    return if (j == 11 && 11 == i) "OK" else "fail j = $j i = $i"
}