[llvm] [RFC] Emit dwarf data for signature-changed or new functions (PR #157349)

[Orlando Cazalet-Hyams via llvm-commits]

OCHyams wrote:

FWIW I replied over in the discourse thread. I think it's best to discuss these high-level design questions over there. (but if everyone disagrees of course I'll happily discuss here instead)

https://github.com/llvm/llvm-project/pull/157349