bug#10123: 24.0.91; [PATCH] make Imenu ignore invisible definitions

["Drew Adams" <drew.adams@oracle.com>]

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Might as well use `invisible-p', so it works for invisibility from overlays as
well as from text properties.  Patch attached.

[-- Attachment #2: imenu-2011-11-24a.patch --]
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diff -c -w "imenu.el" "imenupatched.el"
*** imenu.el	Wed Nov 23 13:43:14 2011
--- imenu-patched.el	Wed Nov 23 13:47:16 2011
***************
*** 800,806 ****
  	      (goto-char (point-max))
  	      (while (and (if (functionp regexp)
  			      (funcall regexp)
! 			    (re-search-backward regexp nil t))
  			  ;; Exit the loop if we get an empty match,
  			  ;; because it means a bad regexp was specified.
  			  (not (= (match-beginning 0) (match-end 0))))
--- 800,813 ----
                 (goto-char (point-max))
                 (while (and (if (functionp regexp)
                                 (funcall regexp)
!                              (and (re-search-backward regexp nil t)
!                                   ;; Do not count invisible definitions.
!                                   (let ((invis  (invisible-p (point))))
!                                     (or (not invis)
!                                         (progn
!                                           (while (and invis  (not (bobp)))
!                                             (setq invis  (not (re-search-backward regexp nil 'MOVE))))
!                                           (not invis))))))
                             ;; Exit the loop if we get an empty match,
                             ;; because it means a bad regexp was specified.
                             (not (= (match-beginning 0) (match-end 0))))

Diff finished at Wed Nov 23 13:48:05