Introduce RandomAccess to JS.

Make EmptyList support RandomAccess.
#KT-10794

js/js.libraries/src/core/javautil.kt

@@ -31,6 +31,9 @@ public inline fun <T> Comparator(crossinline comparison: (T, T) -> Int): Compara
     override fun compare(obj1: T, obj2: T): Int = comparison(obj1, obj2)
 }
 
+@library
+public interface RandomAccess
+
 @library
 public abstract class AbstractCollection<E>() : MutableCollection<E> {
     override fun isEmpty(): Boolean = noImpl
@@ -79,7 +82,7 @@ public abstract class AbstractList<E>() : AbstractCollection<E>(), MutableList<E
 }
 
 @library
-public open class ArrayList<E>(capacity: Int = 0) : AbstractList<E>() {
+public open class ArrayList<E>(capacity: Int = 0) : AbstractList<E>(), RandomAccess {
     override fun get(index: Int): E = noImpl
     override val size: Int get() = noImpl
 }