How does inheritance and vtables work wrt. C++ and interop with D? Fns w/ Multiple-inheritance args impossible to bind to?

[sighoya]

On Monday, 24 May 2021 at 17:39:38 UTC, Gavin Ray wrote:
> I'd be grateful for solid information on this

Here is a more informal report how it works in C++:
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.23.4735&rep=rep1&type=pdf

But in the end, I think a byte code analysis is needed to be 
sure. The best tools to visualize have already been proposed by 
you, so I think you are on a good path.