[Bug c++/52841] [4.7/4.8 Regression] error: type 'Solvable' is not a base type for type 'Resolvable'

["ppluzhnikov at google dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52841

--- Comment #15 from Paul Pluzhnikov <ppluzhnikov at google dot com> 2012-05-30 19:13:02 UTC ---
I've got another small reproducer, that shows up as a slightly different
failure, but very likely is the same problem:

namespace util { }   // comment out => problem disappears
namespace foo {
  namespace util {
    struct Printer {
      struct Convert {
      };
    };
    class XPrinter: Printer {
      // using ::foo::util::Printer::Convert;  // ok
      // using Printer::Convert;               // ok
      using foo::util::Printer::Convert;       // error
    };
  }
}


g++ --version
g++ (GCC) 4.8.0 20120515 (experimental)

g++ -c pp.ii -std=c++11
pp.ii:13:24: error: âutil::Printerâ has not been declared
       using foo::util::Printer::Convert; // error

g++ -c pp.ii -std=c++98 && echo ok
ok