Jonas Ådahl 207b9bb3c0 tests: Fail on warnings too
Getting warnings are always bad and means something is broken, we
shouldn't pass the test suite with them.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1349>
2022-11-25 22:10:27 +01:00
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2022-11-25 22:10:27 +01:00