Overlay: additional feature flags #5079

Job	Run time
Ruby analysis (macos-latest, linked)	1m 27s
Ruby analysis (ubuntu-latest, nightly-latest)	1m 7s
Ruby analysis (ubuntu-latest, linked)	50s
Ruby analysis (ubuntu-latest, default)	51s
Ruby analysis (macos-latest, default)	1m 29s
Ruby analysis (macos-latest, nightly-latest)	1m 19s
	7m 3s

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