Basic support for overlay PR analysis #7101

Job	Run time
Multi-language repository (macos-latest, stable-v2.17.6)	12m 31s
Multi-language repository (macos-latest, stable-v2.19.4)	8m 42s
Multi-language repository (macos-latest, stable-v2.16.6)	8m 4s
Multi-language repository (ubuntu-latest, stable-v2.18.4)	4m 14s
Multi-language repository (ubuntu-latest, stable-v2.16.6)	4m 7s
Multi-language repository (ubuntu-latest, stable-v2.17.6)	4m 10s
Multi-language repository (macos-latest, stable-v2.20.7)	8m 15s
Multi-language repository (ubuntu-latest, stable-v2.20.7)	4m 2s
Multi-language repository (macos-latest, stable-v2.18.4)	9m 29s
Multi-language repository (macos-latest, linked)	11m 40s
Multi-language repository (macos-latest, default)	12m 3s
Multi-language repository (ubuntu-latest, default)	4m 10s
Multi-language repository (ubuntu-latest, linked)	3m 46s
Multi-language repository (ubuntu-latest, nightly-latest)	3m 53s
Multi-language repository (macos-latest, nightly-latest)	10m 49s
Multi-language repository (ubuntu-latest, stable-v2.19.4)	4m 17s
	1h 54m 12s

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