[flang-commits] [flang] [flang][Lower] Treat directives with nested evaluations as constructs (PR #91614)

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vdonaldson wrote:

I don't have the context for this PR. But if any OpenMP or other directive appears immediately before a CASE statement,or before an ELSE statement in an unstructured context, to give two examples, then this fix will be needed.

https://github.com/llvm/llvm-project/pull/91614