bug#32381: 27.0.50; crash in json tests

[Eli Zaretskii]

> From: Andy Moreton <andrewjmoreton@gmail.com>
> Date: Tue, 07 Aug 2018 08:50:09 +0100
> 
> On Tue 07 Aug 2018, Eli Zaretskii wrote:
> 
> >> From: Andy Moreton <andrewjmoreton@gmail.com>
> >> Date: Tue, 7 Aug 2018 00:15:42 +0100
> >> 
> >> Running "make check" for a Windows mingw64 x86_64 build (configured
> >> --with-json) results in a crash in the tests from test/src/json-tests.el.
> >
> > Is this the current master, or is this some other branch?
> 
> The master branch. This is the json code using the jannson library.

I think I fixed this, please test.