use rustc_lint::{LateContext, LateLintPass};
use rustc_middle::ty;
use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::sym;
declare_clippy_lint! {
/// ### What it does
if path.ident.name == sym!(lock);
let ty = cx.typeck_results().expr_ty(self_arg);
if let ty::Ref(_, inner_ty, Mutability::Mut) = ty.kind();
- if is_type_diagnostic_item(cx, inner_ty, sym!(mutex_type));
+ if is_type_diagnostic_item(cx, inner_ty, sym::Mutex);
then {
span_lint_and_sugg(
cx,