Passing $ as a function argument

[Neia Neutuladh]

On 10/10/2018 01:46 AM, James Japherson wrote:
> Would be nice to be able to pass $ as a function argument to be used in 
> automatic path length traversing.

$ only works in indexing operations because that's required to figure 
out what it refers to. However, you can mostly use it as a readonly 
variable there, with the caveat that you can't refer to it directly from 
function literals.