Inline functions to examine and change buffer overlays.

* buffer.c (unchain_both): New function.
* buffer.h (buffer_get_overlays, buffer_set_overlays):
(buffer_has_overlays): New function.
(enum overlay_type): New enum.
* alloc.c, buffer.c, editfns.c, fileio.c, indent.c:
* insdel.c, intervals.c, print.c, xdisp.c: Adjust users.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/alloc.c b/src/alloc.c
index c93fcb564c7..e84be987033 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -5831,8 +5831,8 @@ mark_buffer (struct buffer *buffer)
      a special way just before the sweep phase, and after stripping
      some of its elements that are not needed any more.  */
 
-  mark_overlay (buffer->overlays_before);
-  mark_overlay (buffer->overlays_after);
+  mark_overlay (buffer_get_overlays (buffer, OV_BEFORE));
+  mark_overlay (buffer_get_overlays (buffer, OV_AFTER));
 
   /* If this is an indirect buffer, mark its base buffer.  */
   if (buffer->base_buffer && !VECTOR_MARKED_P (buffer->base_buffer))