and record the bidi type according to its value.
(bidi_cache_iterator_state): Accept an additional argument to only
update an existing state. Handle the new members of struct bidi_it.
- (bidi_cache_find): Arguments changed: no lnger accepts a level,
+ (bidi_cache_find): Arguments changed: no longer accepts a level,
instead accepts a flag telling it whether it is okay to return
unresolved neutrals.
(bidi_initialize): Initiate and staticpro the bracket-type uniprop