[Bug c++/85076] [6/7/8 Regression] ICE with invalid template used as lambda argument

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85076

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Or in forward_parm itself, right after 'tree type = TREE_TYPE (parm);' would be
very safe too.