ref: 2c27f80bb5f4d8084f1d8cf9d01c4377dba92c2f dir: /test/genericmatch.myr/
use std type t(@a) = union `Foo @a `Bar ;; const main = { match `Foo 123 | `Foo a: std.exit(0xf) | `Bar: std.exit(0x0) ;; }