@Tomas: I also want contains_any(Array{Any, 2}) ==
contains_any(Union{Integer, Any}) == true. I tried isleaftype before but
isleaftype(Integer) == isleaftype(Any) == false, i.e. I cannot distinguish
between abstract types and Any.
@Mauro: Thanks for the T.parameters hint. This looks like the right tool.
I use this to check wether the functions in my module have a bad return
type causing type inference problems. Thus it does not have to be the
fastest solution (of course I appreciate faster and more elegant solutions).
Thanks for your help,
Tommy
