[Bug c++/21971] class friend declaration doesn't allow use in class scope

[pinskia at gcc dot gnu dot org]

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           What    |Removed                     |Added
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                 CC|                            |lerdsuwa at users dot
                   |                            |sourceforge dot net
           Keywords|                            |rejects-valid


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21971