Since we threw away all of Yard's warnings we are no longer checking that the
parameter names match for Ruby methods. Thus we need to override Yard's
method_details template with our own to trigger our warning function. However,
there's a catch. If this ruby method is in a Puppet 4x function, we don't want
our warning function to trigger because the user has already been warned. Look
in the registry to see if there is already a Puppet 4x function with the same
name registered.
Also, print errors to stderr instead of using log.warn.
* Add testing file based off shaigy's tests.
* Refactor using_module into a helper class.
* Expect that the warnings printed to stdout are *exactly* what I want to see
and nothing else.
Ian Kronquist