use clippy_utils::diagnostics::span_lint;
-use clippy_utils::{is_diagnostic_assoc_item, match_def_path, path_to_local_id, paths};
+use clippy_utils::{is_diag_trait_item, match_def_path, path_to_local_id, paths};
use if_chain::if_chain;
use rustc_hir::{Expr, ExprKind, HirId, Impl, ImplItem, ImplItemKind, Item, ItemKind};
use rustc_lint::{LateContext, LateLintPass};
if_chain! {
if self.in_display_impl;
if let Some(self_hir_id) = self.self_hir_id;
- if let ExprKind::MethodCall(ref path, _, args, _) = expr.kind;
+ if let ExprKind::MethodCall(path, _, args, _) = expr.kind;
if path.ident.name == sym!(to_string);
if let Some(expr_def_id) = cx.typeck_results().type_dependent_def_id(expr.hir_id);
- if is_diagnostic_assoc_item(cx, expr_def_id, sym::ToString);
+ if is_diag_trait_item(cx, expr_def_id, sym::ToString);
if path_to_local_id(&args[0], self_hir_id);
then {
span_lint(