Support @IntoSet for superclass

[rnett]

I have something that looks like

interface LifecycleListener {
  fun load() {}
}

interface EntityService {
  fun getEntities(): List<Entity>
}

class DefaultEntityService : EntityService, LifecycleListener  {
  private var entities: List<Entity>? = null

  override fun load() {
    entities = loadEntities() // not shown
  }

  override fun getEntities() {
    return entities
  }

}

to bind this properly, I need to do

interface EntityComponent {
  @get:Provides
  val entityService: EntityService = DefaultEntityService()
  @get:IntoSet
  val DefaultEntityService.bind: LifecycleListener = this
}

which gets even worse when you add scopes.

I would like to be able to do

interface EntityComponent {
  @get:Provides
  @get:IntoSet(LifecycleListener::class)
  val entityService: EntityService = DefaultEntityService()
}

[rnett]

You could support multiple IntoSet annotations on the same binding, too.