#![feature(rustc_private)]
#![deny(clippy::internal)]
#![allow(
    clippy::slow_symbol_comparisons,
    clippy::borrow_deref_ref,
    clippy::unnecessary_operation,
    unused_must_use,
    clippy::missing_clippy_version_attribute
)]

extern crate rustc_span;

use rustc_span::symbol::{Ident, Symbol};

fn main() {
    Symbol::intern("foo") == rustc_span::sym::clippy;
    Symbol::intern("foo") == rustc_span::symbol::kw::SelfLower;
    Symbol::intern("foo") != rustc_span::symbol::kw::SelfUpper;
    Ident::empty().name == rustc_span::sym::clippy;
    rustc_span::sym::clippy == Ident::empty().name;
}