#16896: test_asyncore now works with unittest test discovery.  Patch by Zachary Ware.
#16896: merge with 3.3.
#16888: test_array now works with unittest test discovery.  Patch by Zachary Ware.
#16888: merge with 3.3.
#16898: test_bufio now works with unittest test discovery.  Patch by Zachary Ware.
#16898: merge with 3.3.