// FULL_JDK // IGNORE_BACKEND_K2: JVM_IR // FIR status: KT-57269 K2: collection stub for `sort` is not generated for custom List subclasses class DStringIterator(d: Iterator) : Iterator by d class DStringListIterator(d: ListIterator) : ListIterator by d class DStringIterable(d: Iterable) : Iterable by d class DStringCollection(d: Collection) : Collection by d class DStringSet(d: Set) : Set by d class DStringList(d: List) : List by d class DStringMap(d: Map) : Map by d class DStringMapEntry(d: Map.Entry) : Map.Entry by d class DStringCollectionBySet(d: Set) : Collection by d class DStringCollectionByList(d: List) : Collection by d