[llvm] [SPIR-V] Deduce pointee type for all global variables, not only initialized ones (PR #202047)

[Dmitry Sidorov via llvm-commits]

https://github.com/MrSidims commented:

Thanks for the fix! The patch makes sense to me, lets clean comments a bit.

Also the commit message might be less verbose - I could clean it when/if we merge it during merge, but would be nice if you do it in the PR description, so a developer with write access would reuse it during squash and merge.

https://github.com/llvm/llvm-project/pull/202047