Description

Fixes #1044

This PR enables the ContributesSubcomponent.Factory to return the component super type.
The capability of returning component super type is available in @MergeComponent and is also supported in Dagger.

An example of this can be super useful is when we have a base factory.

interface BaseSubcomponent {
  interface Factory {
    fun createFactory(): BaseSubcomponent
  }
}

@ContributesSubcomponent.Factory 
interface Factory : BaseSubcomponent.Factory

This works as expected on 2.5.0-beta09 but later throws a compile error in 2.5.0-beta10