[clang] [Clang][Sema] Print more static_assert exprs (PR #74852)

[Tom Honermann via cfe-commits]

tahonermann wrote:

This looks like a good change to me since coercing a compiler to reveal the values of compile-time objects can be frustrating. We could really use something like `constexpr_print` from [P2758 (Emitting messages at compile time)](https://wg21.link/p2758).

https://github.com/llvm/llvm-project/pull/74852