"""
module Z
  def method; end
end

class A < Z
end
"""

Interesting. Although David has taken this to mean a merger of Classes
and Modules, that's not necessarily the case. It simply indicates a
different treatment of said module. It would be as if a method other
than #include were used.

  module Z
    def method; end
  end

  class A
    integrate Z
  end

That really does seem like a win-win solution for all.

Nice catch Wilson!

T.