fun length(s: String): Int {
  return s.<get-length>()
}

fun lengthN(s: String?): Int? {
  return { // BLOCK
    val tmp0_safe_receiver: String? = s
    when {
      EQEQ(arg0 = tmp0_safe_receiver, arg1 = null) -> null
      else -> tmp0_safe_receiver.<get-length>()
    }
  }
}
