NonReferntialExceptionFunction.kt

fun fn(i: Int): Int {
  val x: Int = throw Exception("boom")
  return try {
     i + x
  } catch(e: Exception){
    42
  }
}

val i = fn(1) // Exception("boom")

// Now substitute x with its expression

fun fn(i: Int): Int {
  return try {
     i + (throw Exception("boom")) as Int
  } catch(e: Exception){
    42
  }
}
val i = fn(1) // 42