patch 9.0.0993: display errors when adding or removing text property type

Problem:    Display errors when adding or removing text property type.
Solution:   Perform a full redraw.  Only use text properties for which the
            type is defined. (closes #11655)

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    993,
 /**/
     992,
 /**/