Take 2 on adding eldoc support to SLIME. Things to note:
- support for GNU version >= 21.3 using hook ``eldoc-print-current-symbol-info-function''; older versions use advice. - 2 approaches to caching arglist lookups; see variable ``slime-cache-type'' for details. - avoids interning symbols when looking for functions that don't exist. - function ``slime-documentation'' to display documentation rather than description for thing-at-point.
Try it out! Comments welcome.
/s