Overlay: additional feature flags #5077

Job	Run time
Ruby analysis (ubuntu-latest, nightly-latest)	59s
Ruby analysis (ubuntu-latest, linked)	45s
Ruby analysis (macos-latest, default)	1m 55s
Ruby analysis (ubuntu-latest, default)	52s
Ruby analysis (macos-latest, linked)	1m 25s
Ruby analysis (macos-latest, nightly-latest)	1m 15s
	7m 11s

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