patch 8.2.3237: when a builtin function gives an error processing continues

Problem:    When a builtin function gives an error processing continues.
Solution:   In Vim9 script return FAIL in get_func_tv().
diff --git a/src/version.c b/src/version.c
index ed3d516..eb65665 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3237,
+/**/
     3236,
 /**/
     3235,