[Bug c++/108206] ICE: tree check: expected tree that contains 'decl minimal' structure, have 'error_mark' in merge_default_template_args, at cp/decl.cc:1563

[asolokha at gmx dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108206

--- Comment #1 from Arseny Solokha <asolokha at gmx dot com> ---
> % g++-13 -c vph5xonf.cc
> vph5xonf.cc:1:11: error: 'WrongType' has not been declared
>     1 | template <WrongType _IsMove, typename T1> void foo (T1);
>       |           ^~~~~~~~~
> vph5xonf.cc:2:11: error: 'WrongType' has not been declared
>     2 | template <WrongType _IsMove, typename T2> void bar (T2);
>       |           ^~~~~~~~~
> zsh: exit 1     g++-13 -c vph5xonf.cc

Please ignore that part.