[Bug c++/57599] result of dynamic_cast is just T

[abel at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57599

--- Comment #7 from Andrey Belevantsev <abel at gcc dot gnu.org> ---
(In reply to Paolo Carlini from comment #6)
> Fixed for 4.9.0.

Do you plan to backport this to 4.7 and 4.8?