class.c (update_vtable_entry_for_fn): Set delta to zero for a lost primary.

class.c (update_vtable_entry_for_fn): Set delta to zero for a lost primary.

        * class.c (update_vtable_entry_for_fn): Set delta to zero for a
        lost primary.

        * class.c (build_vtbl_initializer): Check for a lost primary
        before calculating the vtable entry to throw away.

From-SVN: r48535