[Bug c++/51316] alignof doesn't work with arrays of unknown bound

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51316

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-12-28 
22:31:02 UTC ---
Yeah, just allow the types at issue, that was clarified in core/930 actually.