{"ast_node_type":"variable","tokens":[{"end":36,"kind":"keyword","start":0,"text":"let"}]}
    let tbl = ty.type_bound_list()?;
fn validate_trait_object_ty(ty: ast::DynTraitType) -> Option<SyntaxError> {
    let no_bounds = tbl.bounds().filter_map(|it| it.ty()).next().is_none();