Function rustc_parse::lexer::unescape_error_reporting::emit_unescape_error

pub(crate) fn emit_unescape_error(
    handler: &Handler, 
    lit: &str, 
    span_with_quotes: Span, 
    span: Span, 
    mode: Mode, 
    range: Range<usize>, 
    error: EscapeError
)