[Bug c++/96328] [11 Regression] Single keyword "friend" makes GCC ICE in cp_lexer_previous_token, at cp/parser.c:769 since r11-891-g1dc83b460653c29f

[mark at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96328

--- Comment #6 from Mark Wielaard <mark at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #5)
> Created attachment 48931 [details]
> gcc11-pr96328-alt.patch
> 
> If you want, we could call the safe_previous_token also in the other spot,
> while we don't have a known testcase for those cases, it is still just a
> hint and thus not really required if something goes wrong and everything
> before it is purged.

Yes. I think this alt.patch is perfect. Could you please submit it? Thanks.