Function visualize_loc

pub fn visualize_loc(
    script: &str,
    loc: &Location,
    err_ty: &str,
    desc: &str,
    ln_offset: usize,
    filename: &str,
) -> String

pretty print a location in script with desc.

ln_offset is line offset number that added to loc’s row, filename is the file’s name display with it’s row and columns info.