ref: 5aaf4d7e6e7eb9e55bf314a2db83ab25b834b4fb 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)) }