* lisp/cedet/semantic.el: Restore the
'imenu-create-index-function' on exiting.
* lisp/cedet/semantic/bovine/make.el:
* lisp/cedet/semantic/bovine/scm.el:
* lisp/cedet/semantic/html.el:
* lisp/cedet/semantic/texi.el:
* lisp/cedet/semantic/wisent/java-tags.el:
* lisp/cedet/semantic/wisent/javascript.el:
* lisp/cedet/semantic/wisent/python.el:
* lisp/cedet/srecode/template.el:
Store the original 'imenu-create-index-function' before
changing it. (Bug#74803)