bug#47067: 28.0.50; [feature/native-comp] Crash while scrolling through dispnew.c

[Eli Zaretskii]

> Date: Thu, 11 Mar 2021 13:27:52 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: Andrea Corallo <akrl@sdf.org>
> 
>   #15 0x012de838 in helper_save_restriction () at comp.c:4575
>   #16 0x0122e9aa in wrong_type_argument (predicate=XIL(0x892404890c245c89),
>       value=XIL(0x8244c89e45d8be0)) at data.c:143
>   Backtrace stopped: previous frame inner to this frame (corrupt stack?)
> 

Btw, it's clear that the arguments to wrong_type_argument are
garbled.  Perhaps some code somewhere clobbers the C stack?