[Bug c++/20293] [3.4/4.0/4.1 regression] Wrong diagnostic for ambiguous access

[bangerth at dealii dot org]

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Bug 20293 depends on bug 100, which changed state.

Bug 100 Summary: confusing name lookup diagnostic
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=100

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20293