{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"assert_matches!(tcx.opaque_ty_origin(did),"}]}
                assert_matches!(tcx.opaque_ty_origin(did), hir::OpaqueTyOrigin::TyAlias { .. });
                // Check for desugared `impl Trait`.
                let item_segment = path.segments.split_last().unwrap();