Unblock the windows buildbot.
Unblock the windows buildbot.

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@268566 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit a2c1f2e876aac7ba6b4595f25ff846443bec9fcc)

apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb