Flag a few other functions returning borrowed refs

psycopg/connection_type.c

@@ -550,6 +550,7 @@ psyco_conn_autocommit_get(connectionObject *self)
     return ret;
 }
 
+CPYCHECKER_RETURNS_BORROWED_REF
 static PyObject *
 _psyco_conn_autocommit_set_checks(connectionObject *self)
 {

psycopg/cursor.h

@@ -85,6 +85,7 @@ struct cursorObject {
 
 
 /* C-callable functions in cursor_int.c and cursor_ext.c */
+CPYCHECKER_RETURNS_BORROWED_REF
 HIDDEN PyObject *curs_get_cast(cursorObject *self, PyObject *oid);
 HIDDEN void curs_reset(cursorObject *self);
 

psycopg/cursor_int.c

@@ -38,6 +38,7 @@
  * Return a borrowed reference.
  */
 
+CPYCHECKER_RETURNS_BORROWED_REF
 PyObject *
 curs_get_cast(cursorObject *self, PyObject *oid)
 {