[clang] [lldb] Reland "[clang][DebugInfo] Emit global variable definitions for static data members with constant initializers" (PR #71780)

[Petr Hosek via cfe-commits]

petrhosek wrote:

Can we add back the constant to the declaration? It's been a week and the progress on #72730 seems to have stalled while our builders are still broken.

https://github.com/llvm/llvm-project/pull/71780