[clang] [llvm] [clang][DebugInfo] Emit DW_AT_object_pointer on function declarations with explicit `this` (PR #122928)

[Paul T Robinson via llvm-commits]

pogo59 wrote:

The C API must remain stable and backward compatible. It's the C++ APIs that we are willing to change without worrying.

https://github.com/llvm/llvm-project/pull/122928