[clang] Suppress noreturn warning if last statement in a function is a throw (PR #145166)

[Alexander Kornienko via cfe-commits]

alexfh wrote:

@snarang181 how soon will you be able to address this? This diagnostic keeps being broken at HEAD, and we need to decide whether this change should be reverted until you have time to get back to this. I'll prepare a revert for now and will proceed with it, if I don't get a reply soon.

https://github.com/llvm/llvm-project/pull/145166