
Dylib support for shared_mutex was added in macOS 10.12, so the tests should be XFAILed accordingly instead of being completely disabled whenever availability is enabled. rdar://problem/48769104 llvm-svn: 357079
Dylib support for shared_mutex was added in macOS 10.12, so the tests should be XFAILed accordingly instead of being completely disabled whenever availability is enabled. rdar://problem/48769104 llvm-svn: 357079