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

[David Rivera via cfe-commits]

RiverDave wrote:

> 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

My initial thoughts were that the scope of this PR was too massive. Testing for the capabilities we add here was deferred to: https://github.com/llvm/llvm-project/pull/179073


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