K1: Implement a checker that disallows to have different member scopes for expect open and its actual

^KT-22841 Fixed
Review: https://jetbrains.team/p/kt/reviews/11603/timeline

The commit also introduces `@AllowDifferentMembersInActual` annotation in
stdlib which allows to suppress the diagnostic

libraries/stdlib/js/src/kotlin/collections/AbstractMutableCollection.kt

@@ -12,6 +12,7 @@ package kotlin.collections
  *
  * @param E the type of elements contained in the collection. The collection is invariant in its element type.
  */
+@AllowDifferentMembersInActual // New 'checkIsMutable', 'toJSON', etc. members are added compared to the expect declaration
 public actual abstract class AbstractMutableCollection<E> protected actual constructor() : AbstractCollection<E>(), MutableCollection<E> {
 
     actual abstract override fun add(element: E): Boolean

libraries/stdlib/js/src/kotlin/collections/AbstractMutableList.kt

@@ -17,6 +17,7 @@ package kotlin.collections
  *
  * @param E the type of elements contained in the list. The list is invariant in its element type.
  */
+@AllowDifferentMembersInActual // New 'removeRange', 'checkIsMutable', etc. members are added compared to the expect declaration
 public actual abstract class AbstractMutableList<E> protected actual constructor() : AbstractMutableCollection<E>(), MutableList<E> {
     protected var modCount: Int = 0
 

libraries/stdlib/js/src/kotlin/collections/AbstractMutableMap.kt

@@ -18,6 +18,7 @@ package kotlin.collections
  * @param K the type of map keys. The map is invariant in its key type.
  * @param V the type of map values. The map is invariant in its value type.
  */
+@AllowDifferentMembersInActual // New 'createKeysView', 'checkIsMutable', etc. members are added compared to the expect declaration
 public actual abstract class AbstractMutableMap<K, V> protected actual constructor() : AbstractMap<K, V>(), MutableMap<K, V> {
 
     internal open fun createKeysView(): MutableSet<K> = HashMapKeysDefault(this)

libraries/stdlib/js/src/kotlin/collections/AbstractMutableSet.kt

@@ -9,6 +9,7 @@ package kotlin.collections
  *
  * @param E the type of elements contained in the set. The set is invariant in its element type.
  */
+@AllowDifferentMembersInActual // New 'AbstractMutableCollection` supertype is added compared to the expect declaration
 public actual abstract class AbstractMutableSet<E> protected actual constructor() : AbstractMutableCollection<E>(), MutableSet<E> {
 
     /**

libraries/stdlib/js/src/kotlin/reflect/KClass.kt

@@ -47,7 +47,7 @@ public actual interface KClass<T : Any> : KClassifier {
      * For example, on JVM, [KClass] instances for a primitive type (`int`) and the corresponding wrapper type (`java.lang.Integer`)
      * are considered equal, because they have the same fully qualified name "kotlin.Int".
      */
-    override fun equals(other: Any?): Boolean
+    actual override fun equals(other: Any?): Boolean
 
-    override fun hashCode(): Int
+    actual override fun hashCode(): Int
 }