patch 8.2.0200: Vim9 script commands not sufficiently tested

Problem:    Vim9 script commands not sufficiently tested.
Solution:   Add more tests.  Fix storing global variable.  Make script
            variables work.

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    200,
 /**/
     199,
 /**/