PURPOSE
Check that Scalar::Does doesn't issue any unexpected warnings, even under $^W.
SEE ALSO
https://rt.cpan.org/Ticket/Display.html?id=80121.
THANKS
Laurent Dami initially reported this issue and gave a good demonstration of it.
AUTHOR
Toby Inkster <tobyink@cpan.org>.
COPYRIGHT AND LICENCE
This software is copyright (c) 2012-2014 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.