[flang-commits] [flang] [flang][OpenMP] Diagnose privatized array section reductions (PR #215997)

[Tom Eccles via flang-commits]

tblah wrote:

Thanks again for the reviews. It is taking me a while to respond because I've been spending some time to try to more carefully verify the changes so that I don't waste any more of your time. This PR turned out to involve a lot more moving parts than I initially anticipated.

Draft until #218389 is merged.

https://github.com/llvm/llvm-project/pull/215997