ref: 50c1c9eeaadb2d41ce4c5feadfc211ec75e03c1d 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)) }