[Bug c++/37804] friend declaration leaks into global scope at template instantiation

[ilya.konstantinov at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37804

--- Comment #7 from Ilya Konstantinov <ilya.konstantinov at gmail dot com> ---
Whoever has permission to change, please add 'rejects-valid' as per my example
in the previous comment.

P.S. this issue reproduces in g++ 4.8