Invalid code generated when implementing trait for another trait

[bendmorris]

If this is a code issue, provide a minimal code example:

trait MyTrait;

trait OtherTrait {
    function getHash(): Int;
}

implement MyTrait for Int;
implement MyTrait for Char;

implement OtherTrait for MyTrait {
    function getHash() {
        return this;
    }
}

function main() {
    var i: Int = 1;
    var c: Char = 2;
    printf("%i %i\n", i.OtherTrait.getHash(), c.OtherTrait.getHash());
}