ref: 5927f8f8d3b4ab40d2aacfae4b3cbd593c5e7f01 dir: /test/zwidencast.myr/
use std /* should zero-extend u when casting to v, returning 99 */ const main = { var u : uint8 var v : uint32 u = 99 v = (u : uint32) std.exit((v : int)) }