[clang] [Clang][Sema] Fix NULL dereferences for invalid references (PR #77703)

[Erich Keane via cfe-commits]

erichkeane wrote:

Yeah, this doesn't seem right to me.  Info is a reference, and thus cannot be null by language rule.  A sufficiently smart compiler will remove your check.  If we're SOMEHOW (though I don't see how?) setting it to nullptr, we need to fix that as that is not intended, nor particularly easy from what I can tell.



https://github.com/llvm/llvm-project/pull/77703