Like vl-simple-instantiate except it's a nice macro so that you don't have to put the actuals in a list.
On the down-side, you can't give a location.
Macro:
(defmacro vl-simple-inst (x instname &rest args) (cons 'vl-simple-instantiate (cons x (cons instname (cons (cons 'list args) 'nil)))))