[clang] [CIR] Upstream global variable linkage types (PR #129072)

[Bruno Cardoso Lopes via cfe-commits]

https://github.com/bcardosolopes commented:

Great to see this PR Morris! You should also add CIR <-> CIR tests for the linkage types, incubator has some of them.

https://github.com/llvm/llvm-project/pull/129072