table cell menu does not appear at the menubar

[Tak Ota]

(easy-menu-define table-cell-menu-map table-cell-map "Table cell menu" 
table-cell-menu)

in lisp/textmodes/table.el used to put a table cell menu item on the
menubar and it appeared only when the point entered a table cell
area.  This is somehow not working anymore.  Does anyone have an idea
why?

-Tak