fn main() {
    // FIXME(#133): the list rewrite should fail and force a different format
    let constellation_chan = Constellation::<layout::layout_task::LayoutTask,
                                             script::script_task::ScriptTask>::start(compositor_proxy,
                                                                                     resource_task,
                                                                                     image_cache_task,
                                                                                     font_cache_task,
                                                                                     time_profiler_chan,
                                                                                     mem_profiler_chan,
                                                                                     devtools_chan,
                                                                                     storage_task,
                                                                                     supports_clipboard);

    Quux::<ParamOne /* Comment 1 */, ParamTwo /* Comment 2 */>::some_func();
}

fn op(foo: Bar, key: &[u8], upd: Fn(Option<&memcache::Item>, Baz) -> Result) -> MapResult {
}