undo-elt-crosses-region

undo-elt-crosses-region is a compiled Lisp function in `simple.el'.

(undo-elt-crosses-region UNDO-ELT START END)

This function is obsolete since 25.1.

Test whether UNDO-ELT crosses one edge of that region START ... END.
This assumes we have already decided that UNDO-ELT
is not *inside* the region START...END.