Update src/libponyc/pass/refer.c
Update src/libponyc/pass/refer.c

Co-authored-by: Joe Eli McIlvain <3dfdef851e542c9b0d4f8852a8830872484eba82@gmail.com>
dipinhora/ponyc,ponylang/ponyc,ponylang/ponyc,sgebbie/ponyc,sgebbie/ponyc,ponylang/ponyc,sgebbie/ponyc,sgebbie/ponyc,jemc/ponyc,jemc/ponyc,dipinhora/ponyc,jemc/ponyc,sgebbie/ponyc,dipinhora/ponyc