[Bug c++/70449] [6 Regression] ICE with -Wall on valid code on x86_64-linux-gnu in pp_string, at pretty-print.c:928

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70449

--- Comment #7 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I have tested the patch in Comment 3 and will submit it - this fixes the ICE. 
The problem in Comment 4 is a different issue.