jextract C++ support

[Rel]

Hi,

I would like to know how to participate in C++ support for jextract.
Watching Project Panama video (https://inside.java/2023/04/18/levelup-panama/), Paul mentioned that C++ is in the plans.
Do we have someone working on it already so I can syncup on what is the plan and where I can help?
In particular:
- will it be part of jextract or may be jextract++?
- will it use clang or something else? if clang then which interface https://clang.llvm.org/docs/Tooling.html

There are many things to be done for C++ support but if I pick the most basic like symbols, in C++ they are mangled so current jextract linking logic will need to be changed. Do you think modifying NameMangler to store those mangled C++ symbols will be the right approach?

Regards,
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