{"ast_node_type":"variable","tokens":[{"end":73,"kind":"keyword","start":0,"text":"let"}]}
                let ty = tcx.type_of(item.def_id).instantiate_identity();
            ty::AssocKind::Const { .. } => {
                let ty = wfcx.deeply_normalize(span, Some(WellFormedLoc::Ty(item_id)), ty);