[Bug c++/60572] [4.9 Regression] ICE deriving from class with invalid member

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60572

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 32386
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32386&action=edit
gcc49-pr60572.patch

Untested fix.  Whether you want to fix it this way not sure.