[Bug c++/33255] A warning for "unused" typedefs?

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33255

--- Comment #18 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-07-24 22:37:39 UTC ---
By the way, an obvious positive additional testcase, involving templates, would
be one inspired by libstdc++/33084 that is involving <valarray> *before* the
fix for that bug. Shouldn't be too hard to figure out...