{"ast_node_type":"other","tokens":[{"end":13,"kind":"keyword","start":0,"text":"{"}]}
            {
                ctx.expected_type.as_ref().and_then(|ty| ty.strip_references().as_adt())
                let self_ty = (|| ctx.sema.to_def(impl_.as_ref()?)?.self_ty(ctx.db).as_adt())();