[Bug c++/53211] range-based 'for' expression of type 'const int []' has incomplete type

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53211

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
For comment #1, it looks like there is something wrong in
instantiation_dependent_expression_p: when finish_decltype_type calls it for
arr it returns false, where it seems obvious that it should be true.

This static_assert succeeds:

static_assert(sizeof(arr) == sizeof(int) * sizeof...(Args), "complete type");