does not deduce are never used uninitialized.
* window.h (check_all_windows): New decl, to forestall
gcc -Wmissing-prototypes diagnostic.
+ * dispextern.h (bidi_dump_cached_states): Likewise.
* charset.h (CHECK_CHARSET_GET_CHARSET): Rename locals to avoid
shadowing.
extern void bidi_init_it (EMACS_INT, EMACS_INT, struct bidi_it *);
extern void bidi_move_to_visually_next (struct bidi_it *);
+extern void bidi_dump_cached_states (void);
extern void bidi_paragraph_init (bidi_dir_t, struct bidi_it *, int);
extern int bidi_mirror_char (int);