bset_begv_marker  622 src/buffer.c     bset_begv_marker (b, Qnil);
bset_begv_marker  868 src/buffer.c         bset_begv_marker (b->base_buffer,
bset_begv_marker  883 src/buffer.c         bset_begv_marker (b, build_marker (b, b->begv, b->begv_byte));
bset_begv_marker 4660 src/buffer.c     bset_begv_marker (&buffer_local_flags, make_fixnum (0));