[Bug c++/50344] friend declaration confused by const qualifier

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50344

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-09-15 
10:06:31 UTC ---
Thanks Paolo - I forgot to add a follow-up comment to say I'd tested it