[clang] [C++26] [Contracts] Support Parser, AST and AST Serialization (1/n) (PR #205739)

[Corentin Jabot via cfe-commits]

cor3ntin wrote:

> > > WRT Eric's branch, I've worked with Eric to test changes he made and to test it (see also the issues on his fork), and right now it ICEs on one contract assertion in my (private) code base. GCC 16.1 also ICEs on one, but a different one. As such, from a user point of view it's very close to the same quality level as GCC, and redoing that work seems counterproductive unless there's a different reason to do so.
> > 
> > 
> > I didn't know it unluckily. If it is already tested well and Eric is not working on it, I'd like to take it.
> 
> As @EricWF is not active right now, I'd like to take over his existing work.
> 
> I saw it was a big patch on that branch. I prefer to split them into many small snippets. This is helpful for me to understand the code better. And it is better to other reviewers to understand too.

Sounds like a great direction!

https://github.com/llvm/llvm-project/pull/205739