Regression on validation of manual type annotations to functools.partial between stable version and git about mypy

[surrealoatmeal]

Actually, on further inspection, the current stable release probably doesn't generate any errors because the type given to the annotation is not validated at all.
For example, the partial[bool] annotation is also considered correct by version 1.10.0: https://mypy-play.net/?mypy=latest&python=3.12&gist=8b38f943d002dc6ce084e8771251e78a

So, rather than being a regression, it could be the incomplete and/or buggy implementation of a new check introduced to the codebase after 1.10.0.

I am not sure whether to file a separate bug report or even change the title to reflect my hypothesis though, as they could be unrelated bugs, so I'm leaving it up to the discretion of the maintainers.

[hauntsaninja]

Thanks for testing against latest! If your repo is open source, lmk, I can add it to https://github.com/hauntsaninja/mypy_primer