[Null Values] 7 else -> null (in test(Int)) 9 return s (in test(Int)) 4 var s = when { (in test(Int)) 4 var s = when { (in test(Int)) 7 else -> null (in test(Int)) [NotNull Values] 5 n > 0 -> "+" (in test(Int)) 9 return s (in test(Int)) 4 var s = when { (in test(Int)) 4 var s = when { (in test(Int)) 5 n > 0 -> "+" (in test(Int)) 6 n < 0 -> "-" (in test(Int)) 9 return s (in test(Int)) 4 var s = when { (in test(Int)) 4 var s = when { (in test(Int)) 6 n < 0 -> "-" (in test(Int))