http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26099
--- Comment #31 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-08-31 17:11:38 UTC --- __is_convertible_to isn't such a big issue anymore, thanks to Core/1170 (in C++11 SFINAE includes access control, still unimplemented in GCC, though). However, we now need front-end support for the is_trivially_* traits.
