+2011-06-23 Eli Zaretskii <eliz@gnu.org>
+
+ * dispextern.h (bidi_push_it, bidi_pop_it): Add prototypes.
+
+ * bidi.c (bidi_push_it, bidi_pop_it): New functions.
+ (bidi_initialize): Initialize the bidi cache start stack pointer.
+ (bidi_cache_ensure_space): New function, refactored from part of
+ bidi_cache_iterator_state.
+
2011-06-18 Eli Zaretskii <eliz@gnu.org>
* xdisp.c (tool_bar_lines_needed, redisplay_tool_bar)