patch 9.0.1175: the set_ref_in_item() function is too long

Problem:    The set_ref_in_item() function is too long.
Solution:   Use a separate function for more complicated types. (Yegappan
            Lakshmanan, closes #11802)
diff --git a/src/version.c b/src/version.c
index 47ef860..1876606 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1175,
+/**/
     1174,
 /**/
     1173,