patch 8.2.3035: Vim9: crash when calling :def function with partial

Problem:    Vim9: crash when calling :def function with partial and return
            type is not set.
Solution:   When the return type is not set handle like the return type is
            unknown. (closes #8422)

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3035,
 /**/
     3034,
 /**/