[llvm] [LLVM][IR] Add support for address space names in DataLayout (PR #170559)

[Rahul Joshi via llvm-commits]

jurahul wrote:

Agreed about the option. Also, I missed updating the documentation. I'll do that and see if adding the option will allow gradual adoption/migration of unit tests. I am assuming in the end state we want symbolic names to be enabled in printing by default.

https://github.com/llvm/llvm-project/pull/170559