impl interface PClass
impl object PInterface
impl enum class PObject
impl annotation class PEnumClass
impl class PAnnotationClass

private impl object InternalObject
internal impl object PublicObject
public impl object PrivateObject

final impl class OpenClass
open impl class AbstractClass
abstract impl class FinalClass

impl class C1<A, Extra>
impl class C2<out B>
impl class C3<D, E : D?>

impl typealias C4<F> = C4Impl<F>
class C4Impl<F : Number>

impl abstract class ExtendsNumber : Any()