[Bug c++/125123] mangler issue with 'template for' and 'requires expr'

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125123

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 64547
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64547&action=edit
gcc17-pr125123.patch

Untested fix.