[clang] [CIR] Infrastructure for Language-specific Address Spaces (PR #179054)

[Konstantinos Parasyris via cfe-commits]

https://github.com/koparasy commented:

I don't know what is the policy here. You are adding functionality, most of it is a place holder for next PR and thus NIY, but as is we do not have any testing although you add parsing capabilities. I will delegate this to @andykaylor and @bcardosolopes 

https://github.com/llvm/llvm-project/pull/179054