bug#20140: 24.4; M17n shaper output rejected

[Wolfgang Jenkner]

On Sat, Mar 21 2015, K. Handa wrote:

> By the way, I long ago proposed these commands which enables
> you to move point into a grapheme cluster (by suppressing
> composing of a cluster temporarily).  It worked in old Emacs (I
> don't remember the version), but not in the latest Emacs.
>
> (defun forward-char-intrusive ()
>   (interactive)
>   (setq disable-point-adjustment t)
>   (forward-char 1))

It actually works in trunk emacs, I think.  If we start with point at
the beginning of the word (I use the itrans transcription for clarity)

-!-hiMdI

then calling the function once /appears/ to leave point here

hiM-!-dI

but C-x = shows that it is really here

h-!-iMdI

And so on.