patch 8.2.0696: Vim9: nested function does not work properly

Problem:    Vim9: nested function does not work properly
Solution:   Create a function reference.  Check argument count.

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    696,
 /**/
     695,
 /**/