use def_span and def_kind queries instead of calling tcx.hir() methods

Signed-off-by: Miguel Guarniz <mi9uel9@gmail.com>

clippy_lints/src/same_name_method.rs

@@ -51,14 +51,14 @@ impl<'tcx> LateLintPass<'tcx> for SameNameMethod {
         let mut map = FxHashMap::<Res, ExistingName>::default();
 
         for id in cx.tcx.hir().items() {
-            if matches!(cx.tcx.hir().def_kind(id.def_id), DefKind::Impl)
+            if matches!(cx.tcx.def_kind(id.def_id), DefKind::Impl)
                 && let item = cx.tcx.hir().item(id)
                 && let ItemKind::Impl(Impl {
-                    items,
-                    of_trait,
-                    self_ty,
-                    ..
-                }) = &item.kind
+                  items,
+                  of_trait,
+                  self_ty,
+                  ..
+                                      }) = &item.kind
                 && let TyKind::Path(QPath::Resolved(_, Path { res, .. })) = self_ty.kind
             {
                 if !map.contains_key(res) {