Only pass a versioned prebuilt-modules for Mac Catalyst if it exists.#1695

cwakamo merged 1 commit intomainswiftlang/swift-driver:mainfrom

dev/check-for-existence-before-passing-Catalyst-prebuilt-modulesswiftlang/swift-driver:dev/check-for-existence-before-passing-Catalyst-prebuilt-modulesCopy head branch name to clipboard