[clang] [Clang] [C++26] Iterating expansion statements using string injection (PR #208877)

[Ambrose Leeb via cfe-commits]

Sirraide wrote:

> s this code valid? i tried gcc and it works but it fails on clang and with Sirraide's string-injection branch. Can you look at it?

Afaik Clang has some issues with references to non-`static` constexpr variables (or maybe it was the standard?), either way, I think what you’re seeing here is a result of that and it’s an issue w/ the constant evaluator, but I don’t remember the specifics

https://github.com/llvm/llvm-project/pull/208877