ref: 1c3ed5fc8e69003a0d91a9976afb40bdc6f525ba
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 }