//! This lint is **warn** by default
use crate::utils::{match_type, paths, span_lint};
+use rustc::declare_lint_pass;
use rustc::hir::Expr;
use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
use rustc::ty::{self, Ty};
-use rustc::{declare_lint_pass, declare_tool_lint};
+use rustc_session::declare_tool_lint;
use syntax::ast;
declare_clippy_lint! {