ref: 84704c066eabc23c45f637ae7cb2c89a3204a12a
dir: /test/matchunion.myr/
use std /* checks that union matching works, at least on the key. exits with 84. */ type u = union `Foo `Bar `Baz `Quux ;; const main = { var v v = `Foo match v `Bar: -> 42 ;; `Baz: -> 81 ;; `Foo: -> 84 ;; `Quux: -> 123 ;; ;; }