patch 8.2.4446: Vim9: cannot refer to a global function like a local one

Problem:    Vim9: cannot refer to a global function like a local one.
Solution:   When g:name is not a variable but a function, use a function
            reference. (closes #9826)

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4446,
 /**/
     4445,
 /**/