[Bug c++/78842] "error: declaration of 'bool icase' shadows a parameter" should be warning

[nathan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78842

--- Comment #4 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
sigh, bugzilla's moving on to 'random' other bug gets me.  Again.