[slime-devel] [patch] Fix warning position detection for allegro CL 8.2-beta

Hi,

it seems the position format in the warning :PLIST slot has changed format in the upcoming Allegro CL release. Instead of (#P"somewhere" position), it's (#P"somewhere" position some-other-position) now, which leads to errors in the warning highlighting code.

I've only ever observed these two values to be the same, so I patched the code to use the first value if there are more than one. If anyone with insight into how condition position detections for Allegro CL has a better solution, I'm sure it'll be appreciated. For now, this works for me on 8.2-beta and retains compatibility with older ACL releases.

Cheers,