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

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sethp wrote:

Yeah, definitely agree about adding no new issues like https://github.com/llvm/llvm-project/issues/71675 . The good news is that ought to make for an easy test case: something like `struct { _BitInt(__BITINT_MAXWIDTH__ >> 6) F }` should do it. I'll take a look!

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