[clang] [llvm] [SystemZ][z/OS] __ptr32 support for z/OS in Clang (PR #96063)

[Fanbo Meng via llvm-commits]

fanbo-meng wrote:

code-formatter is complaining about the entire enum table. To be less pervasive, I'll not address that.

https://github.com/llvm/llvm-project/pull/96063