[llvm] [RemoveDIs][DebugInfo][IR] Add parsing for non-intrinsic debug values (PR #79818)

[Adrian Prantl via llvm-commits]

adrian-prantl wrote:

Let me know if this has been discussed elsewhere, but why is necessary to add a new `#` token to the grammar?

https://github.com/llvm/llvm-project/pull/79818