[Laszlo-dev] Mixins in swf9

[André Bargull]

Mixins produce only an empty interface declaration for swf9? The 
description of LPP-5266 says:
1) It should output an `interface`, that consists of the signature of 
the mixin, i.e., all the method declarations. This will make it so 
`instanceof` can work on mixins.

So (1) wasn't implemented? For example LzDataElementMixin will be 
transformed to:
package {
interface LzDataElementMixin {
}
}

But I've expected:
package {
interface LzDataElementMixin {
  function insertBefore (newChild, refChild);
  function replaceChild (newChild, oldChild);
  function removeChild (oldChild);
  [...]
}
}