[swift-corelibs-foundation] Tests not showing in Xcode test navigator

I have performed all the getting started steps in; swift-corelibs-foundation/GettingStarted.md at swift-3.0-branch · apple/swift-corelibs-foundation · GitHub
Everything seems to be working fine, I can build the SwiftFoundation target and I can run the TestFoundation target. But one of the tests are failing in the test-suite. But I have no way of checking which test and why because the test navigator window in Xcode is empty. It wants me to add a new target, but I want it to show the already existing test target ”TestFoundation”. Any ideas on how to achieve this?
Dan Tugendraich

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