[Bug c++/16560] error with inner class declaring operator=

[larsbj at lyx dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |3.5.0
      Known to work|                            |3.3.3 3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16560