bug#24911: 25.1; Emacs hangs or crashes on use of read syntax for circular objects in IELM

[Eli Zaretskii]

> From: Gemini Lasswell <gazally@runbox.com>
> Cc: 
> Date: Thu, 10 Nov 2016 10:08:05 -0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> > I get an error when I type the first line at IELM prompt:
> >> >
> >> >   *** Eval error ***  Symbol’s function definition is void: a
> >> 
> >> Yes, so do I. The hang happens when I navigate back to the first line
> >> after receiving the error message and either edit it and press RET, or
> >> press RET again without editing it.
> >
> > When I do that, I get "end of file during parsing".
> 
> Yes, I've seen that too. Is that the correct behavior? Shouldn't it
> repeat the same error message as before?

I don't know, but it's hardly fatal.  I'd like to focus on the hangs
and crashes first, if they can be reproduced.

Thanks.