Dmitry Soshnikov (2013-05-16T21:19:16.000Z)
github at esdiscuss.org (2013-07-12T02:27:23.474Z)
In the simplest way can just desugar to `Object.mixin(Foo.prototype, Mixin1[, Mixin2, .., MixinN);` before the class creation (methods of own class's prototype should override mixins, but not the parent methods). Although, from what I see in the latest draft even `Object.mixin(...)` is still under discussion.