Change the length of the svexarr array.
In the execution this resizes (to grow or shrink) the underlying Common Lisp array. The logical definition is based on resize-list:
Function:
(defun resize-svexs$a (stobjs::i svexarr$a) (declare (xargs :guard (svexarr$ap svexarr$a))) (resize-list svexarr$a stobjs::i '(-1 . 0)))