patch 8.2.4123: complete function cannot be import.Name

Problem:    Complete function cannot be import.Name.
Solution:   Dereference the function name if needed.  Also: do not see
            "import.Name" as a builtin function. (closes #9541)

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4123,
 /**/
     4122,
 /**/