Improve backward compatibility of save-restriction

* src/editfns.c (save_restriction_save_1): Renamed from
'save_restrictions_save'.  Make it static.
(save_restriction_restore_1): Renamed from
'save_restriction_restore'.  Make it static.
(save_restriction_restore): New function, combining
'save_restriction_save_1' and 'narrowing_locks_save'.
(save_restriction_save): New function, combining
'save_restriction_restore_1' and 'narrowing_locks_restore'.
(Fsave_restriction): Restore the previous code.
(narrowing_locks_save, narrowing_locks_restore): Make them static.

* src/lisp.h: Remove two functions that are not externally visible
anymore.

* src/comp.c (helper_save_restriction): Restore the previous code.

* src/bytecode.c (exec_byte_code): Restore the previous code.

* lisp/emacs-lisp/bytecomp.el (byte-compile-save-restriction):
Decrement unbinding count.

1 files changed, 0 insertions, 2 deletions

diff --git a/src/lisp.h b/src/lisp.h
index 93197d38176..1276285e2f2 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -4684,8 +4684,6 @@ extern void save_excursion_save (union specbinding *);
 extern void save_excursion_restore (Lisp_Object, Lisp_Object);
 extern Lisp_Object save_restriction_save (void);
 extern void save_restriction_restore (Lisp_Object);
-extern Lisp_Object narrowing_locks_save (void);
-extern void narrowing_locks_restore (Lisp_Object);
 extern Lisp_Object make_buffer_string (ptrdiff_t, ptrdiff_t, bool);
 extern Lisp_Object make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t,
                                             ptrdiff_t, bool);