[perl #131502] [BUG] Incorrect useless use warning when WhateverCode is passed as arg to Callable

[Brian S. Julin via RT]

On Sat, 03 Jun 2017 12:08:50 -0700, c...@zoffix.com wrote:
> Oops. Long day. I meant WhateverCode is passed, not Junction.

Fudged tests preemptively added to S02-types/whatever.t in roast commit 
4b2fef409.