11972 resync smatch

@@ -34,11 +34,11 @@
 
 static int is_do_while_zero(struct statement *stmt)
 {
         if (!stmt->iterator_post_condition)
                 return 0;
-        if (!is_zero(stmt->iterator_post_condition))
+        if (!expr_is_zero(stmt->iterator_post_condition))
                 return 0;
         return 1;
 }
 
 static void push_statement(struct statement_list **stack, struct statement *stmt)