[Dependency Scanning] Revert Swift overlay lookup using "visible" Clang modules only #83551
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…ng modules only We have identified scenarios where this is insufficient and compilation still relies on the presence of certain overlay modules this excludes. Reverting to prior lookup logic while we investigate. Resolves rdar://157519278
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nkcsgexi
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Aug 5, 2025
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We have identified scenarios where this is insufficient and compilation still relies on the presence of certain overlay modules this excludes. Reverting to prior lookup logic while we investigate.
This does not fully revert #83050 which was inter-dependent with a Clang API change. Instead it only reverts the logic of
resolveSwiftOverlayDependenciesForModuleto its prior implementation.Resolves rdar://157519278