[Bug c++/66067] [5/6 Regression] tree check ICE: accessed elt 1 of tree_vec with 0 elts in write_template_args, at cp/mangle.c:2574

[jamrial at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66067

--- Comment #2 from James Almer <jamrial at gmail dot com> ---
Created attachment 35594
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35594&action=edit
Preprocessed source as generated by -freport-bug, from the second test case