Overlay: additional feature flags #5109

Job	Run time
Ruby analysis (ubuntu-latest, linked)	47s
Ruby analysis (ubuntu-latest, nightly-latest)	1m 4s
Ruby analysis (ubuntu-latest, default)	49s
Ruby analysis (macos-latest, linked)	3m 12s
Ruby analysis (macos-latest, default)	1m 28s
Ruby analysis (macos-latest, nightly-latest)	1m 49s
	9m 9s

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