[4.2] Backport SR-9863 #442 to swift-4.2-branch#443
Merged
ktopley-apple merged 1 commit intoswiftlang:swift-4.2-branchfrom Feb 7, 2019
kevints:backport-sem-wait
Merged
[4.2] Backport SR-9863 #442 to swift-4.2-branch#443ktopley-apple merged 1 commit intoswiftlang:swift-4.2-branchfrom kevints:backport-sem-wait
ktopley-apple merged 1 commit intoswiftlang:swift-4.2-branchfrom
kevints:backport-sem-wait
