analyzer][CallAndMessage][NFC] Change old callbacks to rely on CallEvent

The following series of patches has something similar in mind with D77474, with
the same goal to finally end incorrect checker names for good. Despite
CallAndMessage not suffering from this particular issue, it is a dependency for
many other checkers, which is problematic, because we don't really want
dependencies to also emit diagnostics (reasoning for this is also more detailed
in D77474).

CallAndMessage also has another problem, namely that it is responsible for a lot
of reports. You'll soon learn that this isn't really easy to solve for
compatibility reasons, but that is the topic of followup patches.

Differential Revision: https://reviews.llvm.org/D77845