Feature Request: Async Mixins

[ralphchristianeclipse]

What problem does this feature solve?

This solves asynchronous components to have mixins when they are resolved

What does the proposed API look like?

just add a mixin asynchronously

[posva]

Why would you add an async mixin? This would make the component properties editable at runtime which can lead to very unexpected behaviours

[yyx990803]

I don't think this makes much sense... there's nothing that prevents an async component from using mixins normally.