For the popup while editing, that should be in the Context Tagging section for the language options, under "Show info for symbol under mouse".
The setting for debugging is global, and not per-language, it's in Tools -> Options -> Debugging -> General, "Show value of symbol under mouse."
I did a quick check to make sure they're still separately controllable, so if it's not working for you, send in your latest user.cfg.xml, and we'll take a look at it. And I added a note to add "hover" to the search terms for those popup settings, since that search term makes sense.