bug#10148: 24.0.91; "pending" regexp Isearch

[Juri Linkov <juri@jurta.org>]

>> The message "pending" is not necessary for `isearch-fallback',
>> but it helps when using `isearch-toggle-regexp', `isearch-toggle-word'
>> and `isearch-toggle-case-fold' because they doesn't repeat the search
>> immediately and require an action from the user to find the next match
>> (like another `C-s').
>
> In this context "pending" makes sense, yes.  So the problem is that
> "pending" is also used for the other case where it does not make sense.

This is still doubtful because when using an incomplete regexp like
`C-M-s i s \ |', "pending" still makes sense since Isearch is waiting
for the user to type an alternative search string.

Actually this situation is already described in (info "(emacs) Regexp Search"):

     In some cases, adding characters to the regexp in an incremental
  regexp search can make the cursor move back and start again.  For
  example, if you have searched for `foo' and you add `\|bar', the cursor
  backs up in case the first `bar' precedes the first `foo'.

So it seems that Dani just wants to add a phrase like

  and `Pending' appears in the search prompt

to the end of the first sentence cited above in the Info manual.