(defalias 'gnus-overlay-buffer 'overlay-buffer)
(defalias 'gnus-overlay-start 'overlay-start)
(defalias 'gnus-overlay-end 'overlay-end)
(defalias 'gnus-overlay-buffer 'overlay-buffer)
(defalias 'gnus-overlay-start 'overlay-start)
(defalias 'gnus-overlay-end 'overlay-end)