[Runtime] Support precomputed protocol conformances outside the shared cache. #41185
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Extend the support for precomputed protocol conformances in the shared cache. When available, we'll query dyld for conformances in optimized images loaded outside the shared cache. This is a relatively small addition; where we previously checked the shared cache, we now check both. The order is conditionalized on
scanSectionsBackwards
to preserve that behavior. We also rename some identifiers to fit this more expansive use of preoptimized conformances.rdar://87425446