ref: 5cf8a9d385a8a91169b24fa30605e129f63b043f
dir: /test/matchunion_sl.myr/
use std /* checks pattern matching on unions with arguments. exits with 42. */ type u = union `Int int `Str byte[:] `Nil ;; const main = { var v v = `Str "foo" match v /* `Int 127: -> 42 ;; */ `Str s: std.put("%s\n", s) ;; /* `Nil: ;; */ ;; -> 0 }