patch 8.2.1242: Vim9: no error if calling a function with wrong type

Problem:    Vim9: no error if calling a function with wrong argument type.
Solution:   Check types of arguments. (closes #6469)

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1242,
 /**/
     1241,
 /**/