Fall back to non-overlay analysis when diff-informed analysis is unavailable #9581

Job	Run time
Split workflow (ubuntu-latest, default)	1m 31s
Split workflow (macos-latest, linked)	1m 30s
Split workflow (macos-latest, default)	1m 19s
Split workflow (macos-latest, nightly-latest)	1m 47s
Split workflow (ubuntu-latest, nightly-latest)	1m 18s
Split workflow (ubuntu-latest, linked)	1m 31s
	8m 56s

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