[clang] [analyzer] Use explicit call description mode in iterator checkers (PR #88913)

[Balazs Benics via cfe-commits]

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

This should be all good.

FYI std lib funcs are not always functions. They could be also niebloids, which we cant actually hook. This shouldnt affect these apis though. I left it here as food for thought.

https://github.com/llvm/llvm-project/pull/88913