[clang] Delay marking pending incomplete decl chains until the end of `finishPendingActions`. (PR #121245)

[via cfe-commits]

cor3ntin wrote:

Did you try creduce/cvise (although using that with modules might be a bit challenging)
It would be really nice to have a repro so that we have a test case

https://github.com/llvm/llvm-project/pull/121245