Function rustc_span::analyze_source_file::analyze_source_file_generic

fn analyze_source_file_generic(
    src: &str,
    scan_len: usize,
    output_offset: RelativeBytePos,
    lines: &mut Vec<RelativeBytePos>,
    multi_byte_chars: &mut Vec<MultiByteChar>,
    non_narrow_chars: &mut Vec<NonNarrowChar>
) -> usize