[clang] [analyzer] Add support for consteval in ConditionBRVisitor::VisitTerminator (PR #146859)

[Imad Aldij via cfe-commits]

imdj wrote:

> Could you search the github issues for issues having the static analyzer label and `consteval` to see if we missed anything? (I don't think we have, but better be sure)

There's only one result returned, and it's the same issue this PR is aimed at.

https://github.com/llvm/llvm-project/issues?q=is%3Aissue%20consteval%20label%3A%22clang%3Astatic%20analyzer%22

https://github.com/llvm/llvm-project/pull/146859