Bugfix: Specialize UNPARSE for UFFI-CHAR in CFFI-UFFI-COMPAT.
Bugfix: Specialize UNPARSE for UFFI-CHAR in CFFI-UFFI-COMPAT.

- Fixes an error when loading FASL files that dumped UFFI-CHAR instead
  of (UFFI-CHAR :CHAR) using MAKE-LOAD-FORM.
- Reported by Ricardo Boccato.

wesen/cffi,dochang/cffi,dkochmanski/cffi,3b/cffi,cffi/cffi,marsijanin/cffi,3b/cffi,stassats/cffi,marsijanin/cffi,dochang/cffi,stassats/cffi,kingcheez/cffi-cheez,kingcheez/cffi-cheez,attila-lendvai/cffi,dkochmanski/cffi,akovalenko/cffi,mcna/cffi,akovalenko/cffi,cffi/cffi,kingcheez/cffi-cheez,akovalenko/cffi,dochang/cffi,marsijanin/cffi,attila-lendvai/cffi,wesen/cffi,dkochmanski/cffi,3b/cffi,mcna/cffi,wesen/cffi,cffi/cffi,stassats/cffi