use crate::utils::span_lint;
-use rustc::lint::{LateContext, LateLintPass};
use rustc_data_structures::fx::FxHashSet;
use rustc_hir::*;
+use rustc_lint::{LateContext, LateLintPass};
use rustc_session::{declare_tool_lint, impl_lint_pass};
declare_clippy_lint! {