patch 8.2.0508: Vim9: func and partial types not done yet

Problem:    Vim9: func and partial types not done yet
Solution:   Fill in details about func declaration, drop a separate partial
            declaration.
diff --git a/src/version.c b/src/version.c
index 38ab531..f082399 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    508,
+/**/
     507,
 /**/
     506,