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

[Michael Buch via llvm-commits]

Michael137 wrote:

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

In that case should we adjust the documentation in the header?
https://github.com/llvm/llvm-project/blob/1c28b9237382b093f477479c993c80181922ca6a/llvm/include/llvm-c/DebugInfo.h#L7-L14


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