Lifting operations out of loops not working on accented quotes

[Vindaar]

Initially I didn't even want to support lifting operations that use accented quotes. Now though I'm not entirely sure what my reasoning was. I suppose detecting if something needs to be lifted is simpler if it's an explicit col access.

It would be great if at least if we cannot support it, we raise a CT error if such usage is seen.

edit: right, there's even still a comment about exactly this issue, oops.