[Bug c++/66847] Derived class calling protected base ctor using C++11 {brace} init = spurious access denied error

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66847

--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> ---
*** Bug 66617 has been marked as a duplicate of this bug. ***