b2639a469b
- We are relying on static indexing to find candidates for sealed inheritors, hence the extension to the index. - The direct usage of `KotlinStaticDeclarationProviderFactory` in `KotlinStandaloneDirectInheritorsProvider` is not pretty, but a proper design requires making the static index available as a service and moving "static" services to the Standalone API (from AA providers). ^KT-66013