bug#23418: 25.1.50; next-history-element no longer works in query-replace

[Juri Linkov]

> 1. emacs -q
> 2. Go to the scratch buffer and place point on a word.
> 3. M-x query-replace-regexp (or query-replace)
> 4. M-n
> 5. Emacs will say: “End of history; no default available”.
>
> Until recently, this would try to “guess” what you want to replace by
> inserting the word at point on the prompt. If you kept hitting M-n it
> would try other guesses like inserting the word surrounded in symbol
> delimiters.

I see the same bug caused by
http://git.sv.gnu.org/cgit/emacs.git/commit/?h=emacs-25&id=f99b51295b86770e4b16d4717c0e73049191c4c5
that breaks syntax for bounds-of-thing-at-point.