[Bug c++/94771] New: g++.dg/concepts/diagnostic10.C fails on mingw

[sbence92 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94771

            Bug ID: 94771
           Summary: g++.dg/concepts/diagnostic10.C fails on mingw
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sbence92 at gmail dot com
  Target Milestone: ---

g++.dg/concepts/diagnostic10.C fails with gcc 10 (ead1c27a530) on mingw target
and host.

Instead of 
diagnostic10.C:6:31: error: invalid use of non-static member function 'int
S::f()'
we get
diagnostic10.C:6:31: error: statement cannot resolve address of overloaded
function.

Seems like the fix for Bug 52597 (typeck.c invalid_nonstatic_memfn_p) went with
a special case for -fms-extensions which is a default for mingw.

Compiling with -fno-ms-extensions provides the correct diagnostic.