ref: 1f979324794c81c3e8587b27c6124c640be9f9d5
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: std.exit(42)
| `Baz: std.exit(81)
| `Foo: std.exit(84)
| `Quux: std.exit(123)
;;
}