[clang] [analyzer] Make recognition of hardened __FOO_chk functions explicit (PR #86536)

[Balazs Benics via cfe-commits]

https://github.com/steakhal approved this pull request.

LGTM, but I'd recommed @Xazax-hun to also have a look.
If nothing happens, merge this after one week.

https://github.com/llvm/llvm-project/pull/86536