ref: 515b8e89c1a6c0859eaefbf7835a4e6497a57e0b dir: /test/swidencast.myr/
use std /* sign extending cast. should exit with status 99 */ const main = { var u : int8 var v : int32 u = 99 v = u castto(int32) std.exit(v castto(int)) }