fn simple(/*pre-comment on a function!?*/ i: i32/*yes, it's possible!  */   
                                        ,response: NoWay /* hose */) {"cool"}


fn weird_comment(/* /*/ double level */ comment */ x: Hello /*/*/* tripple, even */*/*/,
// Does this work?
y: World
) {
        simple(/* does this preserve comments now? */ 42, NoWay)
}

fn generic<T>(arg: T) -> &SomeType
    where T: Fn(// First arg
        A,
        // Second argument
        B, C, D, /* pre comment */ E /* last comment */) -> &SomeType {
    arg(a, b, c, d, e)    
}

pub fn http_fetch_async(listener:Box< AsyncCORSResponseListener+Send >,  script_chan:  Box<ScriptChan+Send>) {
}

fn some_func<T:Box<Trait+Bound>>(val:T){}