Fix 'save-restriction' for narrowing locks

* src/editfns.c (narrowing_locks_save):
(narrowing_locks_restore): Make them non-static.

* src/lisp.h: Make them externally visible.

* src/bytecode.c (exec_byte_code): Save and restore narrowing
locks.

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

* src/comp.c (helper_save_restriction): Save and restore narrowing
locks.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/comp.c b/src/comp.c
index 10cf7962ba1..0e2dfd3913b 100644
--- a/src/comp.c
+++ b/src/comp.c
@@ -5063,6 +5063,8 @@ helper_save_restriction (void)
 {
   record_unwind_protect (save_restriction_restore,
                          save_restriction_save ());
+  record_unwind_protect (narrowing_locks_restore,
+                         narrowing_locks_save ());
 }
 
 static bool