ref: c0192155d8e843ab3355a564ed97537d0ede00a6 dir: /test/matchargunion.myr/
type u = union `Int int `Chr char `Nil ;; const main = { var v v = `Int 123 match v `Int 127: -> 42 ;; `Int 123: -> 69 ;; `Chr 'a': -> 4 ;; `Nil: -> 6 ;; ;; }