Swift 3.1: provide fallback definitions for all API_* macros#219

das merged 1 commit intoswift-3.1-branchswiftlang/swift-corelibs-libdispatch:swift-3.1-branchfrom

das-api-availability-build-fix-3.1swiftlang/swift-corelibs-libdispatch:das-api-availability-build-fix-3.1Copy head branch name to clipboard