ref: 4a8bc7aa008f753c082a914a0f95ea3df09d2123 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") }