ref: 87b4515f7e065029ec88eca6f6133f53223def8a
dir: /test/matchint.myr/
use std /* checks that matching integers works. exits with 84. */ const main = { var v v = 12 match 12 | 1: std.exit(42) | 2: std.exit(81) | 3: std.exit(123) | 4: std.exit(99) | 12: std.exit(84) | 6: std.exit(18) ;; }