Function till_line_ending_

fn till_line_ending_<I, E: ParserError<I>, const PARTIAL: bool>(
    input: &mut I,
) -> PResult<<I as Stream>::Slice, E>
where
    I: StreamIsPartial + Stream + Compare<&'static str> + FindSlice<(char, char)>,
    <I as Stream>::Token: AsChar + Clone,