RefCell and &mut ~Trait strange syntax is required.

[dpc]

use std::cell::RefCell;

trait Foo {}

impl Foo for () {}

fn main() {
    let foo: RefCell<~Foo> = RefCell::new(~() as ~Foo);
    let fooref: &mut Foo = *&mut *foo.borrow_mut();
    println!("{:?}", fooref);
}

Is this really required? Thanks Eridius for helping me get this to work.

[lilyball]

I just filed this already as #13305