[llvm] [DebugInfo][Verifier] Verify that array types have base types present (PR #70803)

[David Blaikie via llvm-commits]

https://github.com/dwblaikie approved this pull request.

Sounds OK to me - though probably run it on some real codebases first, just in case there's some clang bugs we need to fix before we can take this live?

https://github.com/llvm/llvm-project/pull/70803