patch 8.0.0414: balloon eval is not tested

Problem:    Balloon eval is not tested.
Solution:   Add a few balloon tests. (Kazunobu Kuriyama)
diff --git a/src/version.c b/src/version.c
index 040862b..2e52f84 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    414,
+/**/
     413,
 /**/
     412,