easy-menu-item-present-p
easy-menu-item-present-p is a compiled Lisp function in `easymenu.el
'.
(easy-menu-item-present-p MAP PATH NAME)
In submenu of MAP with path PATH, return non-nil if item NAME is present.
MAP and PATH are defined as in `easy-menu-add-item'.
NAME should be a string, the name of the element to be looked for.