Fix text direction of the HarfBuzz shaping buffer

* src/indent.c (scan_for_column, compute_motion):
* src/xdisp.c (CHAR_COMPOSED_P): Pass PDIR argument to
composition_reseat_it.
* src/composite.c (composition_reseat_it): Accept an
additional argument PDIR that provides the current paragraph's
base direction; all callers changed.  Use PDIR to fix
calculation of the DIRECTION argument to autocmp_chars.
(Bug#33944)
* src/composite.h: Include dispextern.h.
(composition_reseat_it): Update prototype.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/composite.h b/src/composite.h
index ad39a08dca3..44f7ab7f616 100644
--- a/src/composite.h
+++ b/src/composite.h
@@ -26,6 +26,7 @@ along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 #define EMACS_COMPOSITE_H
 
 #include "font.h"
+#include "dispextern.h"
 
 INLINE_HEADER_BEGIN
 
@@ -321,7 +322,7 @@ extern void composition_compute_stop_pos (struct composition_it *,
                                           Lisp_Object);
 extern bool composition_reseat_it (struct composition_it *, ptrdiff_t,
                                    ptrdiff_t, ptrdiff_t, struct window *,
-                                   struct face *, Lisp_Object);
+                                   bidi_dir_t, struct face *, Lisp_Object);
 extern int composition_update_it (struct composition_it *,
                                   ptrdiff_t, ptrdiff_t, Lisp_Object);