Function insert_dotted_circles 

pub fn insert_dotted_circles(
    font_funcs: &mut FontFuncsDispatch<'_, '_>,
    buffer: &mut hb_buffer_t,
    broken_syllable_type: u8,
    dottedcircle_category: u8,
    repha_category: Option<u8>,
    dottedcircle_position: Option<u8>,
) -> bool