ref: 3d4d7c4ca9eb30d468d71c26f4b4588c800c9d1c dir: /test/recgeneric.myr/
use std type o(@a) :: integral @a = union `S @a ;; type x(@k) = struct n : o(x(@k)#) ;; const main = { var test : x(int) std.put("built\n") }