{"ast_node_type":"variable","tokens":[{"end":65,"kind":"keyword","start":0,"text":"let"}]}
    let item_name = tcx.item_name(trait_item_def_id.to_def_id());
fn lint_item_shadowing_supertrait_item<'tcx>(tcx: TyCtxt<'tcx>, trait_item_def_id: LocalDefId) {
    let trait_def_id = tcx.local_parent(trait_item_def_id);