8160687: (fs) Cannot tell which WatchService test is not deleting temp directories "work*" Summary: Change name of "work" temp directory to "TestName" Reviewed-by: rriggs

^build/
^dist/
^.idea/
nbproject/private/
^webrev
^.hgtip
^.bridge2
^.jib/
.DS_Store
.metadata/
.recommenders/