[flang-commits] [flang] [Flang] Avoid crash on invalid EQUIVALENCE objects (PR #215979)

[Eugene Epshteyn via flang-commits]

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

LGTM, thank you!

Let me know if I should merge this for you.

https://github.com/llvm/llvm-project/pull/215979