[sv-ec] Steven's SV-EC items

I don't think there is a Mantis item for it, but we should consider
adding "ref static" arguments which can only be passed references to
static variables, but can then be referenced inside fork..join_none/
join_any blocks. This would allow the creation of subprocesses that
wait on signals in the design.

It might also be possible to extend this to allow ref variables and
class members, instead of just arguments, to provide a more general
pointer capability.

Steven Sharp
sharp@cadence.com

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