Cross Reference: /external/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.unique/thread.lock.unique.obs

`Name`	`Date`	`Size`
Up to higher level directory
`mutex.pass.cpp`	05-Oct-2017	`749`
`op_bool.pass.cpp`	05-Oct-2017	`790`
`owns_lock.pass.cpp`	05-Oct-2017	`761`