[Bug c++/65071] ICE on valid, sizeof...() of template template parameter pack in return type

[maltsevm at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65071

--- Comment #3 from Mikhail Maltsev <maltsevm at gmail dot com> ---
For the record: a patch for this PR
https://gcc.gnu.org/ml/gcc-patches/2015-02/msg01067.html