Summary

I spent an hour today debugging a test with pytest because I didn't realize that I had used return TypeError('blah') when I should have used raise TypeError('blah').

I'm not sure (but willing to be corrected) if there is a case where one would want to return the Exception instead of raise -ing the exception. If there is, then would be good to throw a warning.
If not, then would be better to autofix so that return becomes raise instead.

Closest existing issue I found was #21571 .

Looks like I'm using ruff 0.14.10. Happy to provide more info if helpful.