My goal is to remove the `object_pointer` member on
`ParsedDWARFTypeAttributes` since it's duplicating information that we
retrieve with `GetCXXObjectParameter` anyway. To continue having
coverage for the `DW_AT_object_pointer` code-paths, instead of checking
the
`attrs.object_pointer` I'm now calling `GetCXXObjectParameter` directly.
We could find some very roundabout way to go via the Clang AST to check
that the object parameter was parsed correctly, but that quickly became
quite painful.
Depends on https://github.com/llvm/llvm-project/pull/144876