Please add slime-canonicalize. It is a small tool for canonicalizing symbols in slime.
This may not be appropriate for inclusion into quicklisp, since half of the source is emacs lisp code. But it can still be quite useful.
@quicklisp After thinking about this some more, I've decided that this code would probably work better as a slime contrib, if the slime maintainers will have it. So I guess there is no need to add it to quicklisp as a separate project (if it's already there, that's fine too).