{"ast_node_type":"variable","tokens":[{"end":73,"kind":"keyword","start":0,"text":"if"}]}
        if let hir::ItemKind::Enum(_, _, ref enum_definition) = it.kind {
    fn check_item(&mut self, cx: &LateContext<'_>, it: &hir::Item<'_>) {
            let t = cx.tcx.type_of(it.owner_id).instantiate_identity();