patch 9.1.0646: Vim9: imported function may not be found

Problem:  Vim9: imported function may not be found
Solution: Try to find the function by name (Ernie Rael)

fixes: #15381
closes: #15382

Signed-off-by: Ernie Rael <errael@raelity.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index f19e941..4dc9948 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    646,
+/**/
     645,
 /**/
     644,