Overlay: additional feature flags #5078

Job	Run time
Ruby analysis (macos-latest, linked)	2m 0s
Ruby analysis (macos-latest, default)	1m 38s
Ruby analysis (macos-latest, nightly-latest)	2m 2s
Ruby analysis (ubuntu-latest, nightly-latest)	1m 5s
Ruby analysis (ubuntu-latest, linked)	51s
Ruby analysis (ubuntu-latest, default)	42s
	8m 18s

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