Artem Chikin e2eb8c8f47 [Dependency Scanner] Do not re-use prior source dependencies in successive scans ...

If a scanner instance is used for multiple scans, the `SwiftDependencyScanningService` will have collected prior scans' main source modules' dependency info.
Suppose the scanner first scans a source module `A` and records its dependencies. If a successive scan of some source module `B` finds that it depends on `A`, it would get a cache hit on the source module from a prior scan and re-use dependency information. This change no longer allows such re-use of the prior source module scan dependencies. Said prior scan may have had an entirely different context and therefore different set of dependencies on `A` than may be visible otherwise. Instead, all scanning actions must rely on such modules being re-discovered on the filesystem.

2023-01-25 16:47:38 -08:00

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