patch 8.2.1734: Vim9: cannot use a funcref for a closure twice

Problem:    Vim9: cannot use a funcref for a closure twice.
Solution:   Instead of putting the funcref on the stack use a growarray on the
            execution context.

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1734,
 /**/
     1733,
 /**/