[flang-commits] [flang] [flang][OpenMP] Restore reduction processor behavior broken by #145837 (PR #150178)

[Tom Eccles via flang-commits]

https://github.com/tblah approved this pull request.

Okay I guess there is a danger the NYI could regress applications that use this feature but don't actually care about a correct result so maybe it should land separately so it can be more easily reverted.

https://github.com/llvm/llvm-project/pull/150178