[llvm] [clang] [llvm][DebugInfo] DWARFv5: static data members declarations are DW_TAG_variable (PR #72234)

[Arthur Eubanks via cfe-commits]

aeubanks wrote:

actually I think the caller is in Rust, so perhaps we should just update Rust instead. but making some of these params more strongly typed would be good

https://github.com/llvm/llvm-project/pull/72234