ref: d8959a4a6d41b0a1328d81eef7c29d10ec669f8e dir: /test/recgeneric.myr/
use std type o(@a::integral) = union `S @a ;; type x(@k) = struct n : o(x(@k)#) ;; const main = { var test : x(int) std.put("built\n") }