Update kotlin version to 1.9.20-RC2

Author: igoriakovlev

gradle.properties

@@ -5,13 +5,13 @@
 # Kotlin
 version=1.7.2-SNAPSHOT
 group=org.jetbrains.kotlinx
-kotlin_version=1.9.20-Beta2
+kotlin_version=1.9.20-RC2
 
 # Dependencies
 junit_version=4.12
 junit5_version=5.7.0
 # TODO: Update version as regular atomic-fu will be published
-atomicfu_version=0.22.0-wasm1
+atomicfu_version=0.22.0-wasm2
 knit_version=0.4.0
 html_version=0.7.2
 lincheck_version=2.18.1

integration-testing/gradle.properties

@@ -1,4 +1,4 @@
-kotlin_version=1.9.20-Beta2
+kotlin_version=1.9.20-RC2
 coroutines_version=1.7.2-SNAPSHOT
 asm_version=9.3
 

kotlinx-coroutines-core/concurrent/src/CompletionHandler.kt

@@ -8,7 +8,6 @@ import kotlinx.coroutines.internal.*
 
 // New 'CompletionHandler` supertype is added compared to the expect declaration.
 // Probably we can add it to JS and common too, to avoid the suppression/opt-in
-@AllowDifferentMembersInActual
 internal actual abstract class CompletionHandlerBase actual constructor() : LockFreeLinkedListNode(), CompletionHandler {
     actual abstract override fun invoke(cause: Throwable?)
 }
@@ -17,7 +16,6 @@ internal actual inline val CompletionHandlerBase.asHandler: CompletionHandler ge
 
 // New 'CompletionHandler` supertype is added compared to the expect declaration.
 // Probably we can add it to JS and common too, to avoid the suppression/opt-in
-@AllowDifferentMembersInActual
 internal actual abstract class CancelHandlerBase actual constructor() : CompletionHandler {
     actual abstract override fun invoke(cause: Throwable?)
 }

kotlinx-coroutines-core/concurrent/src/internal/LockFreeLinkedList.kt

@@ -46,7 +46,6 @@ internal val CONDITION_FALSE: Any = Symbol("CONDITION_FALSE")
     "LeakingThis",
 )
 @InternalCoroutinesApi
-@AllowDifferentMembersInActual
 public actual open class LockFreeLinkedListNode {
     private val _next = atomic<Any>(this) // Node | Removed | OpDescriptor
     private val _prev = atomic(this) // Node to the left (cannot be marked as removed)
@@ -56,8 +55,7 @@ public actual open class LockFreeLinkedListNode {
         _removedRef.value ?: Removed(this).also { _removedRef.lazySet(it) }
 
     @PublishedApi
-    @AllowDifferentMembersInActual
-    internal abstract class CondAddOp(
+        internal abstract class CondAddOp(
         @JvmField val newNode: Node
     ) : AtomicOp<Node>() {
         @JvmField var oldNext: Node? = null
@@ -335,7 +333,6 @@ internal fun Any.unwrap(): Node = (this as? Removed)?.ref ?: this as Node
  *
  * @suppress **This is unstable API and it is subject to change.**
  */
-@AllowDifferentMembersInActual
 public actual open class LockFreeLinkedListHead : LockFreeLinkedListNode() {
     public actual val isEmpty: Boolean get() = next === this
 

kotlinx-coroutines-core/js/src/JSDispatcher.kt

@@ -7,7 +7,6 @@ package kotlinx.coroutines
 import org.w3c.dom.*
 import kotlin.js.Promise
 
-@AllowDifferentMembersInActual
 public actual typealias W3CWindow = Window
 
 internal actual fun w3cSetTimeout(window: W3CWindow, handler: () -> Unit, timeout: Int): Int =

kotlinx-coroutines-core/jsAndWasmShared/src/internal/LinkedList.kt

@@ -10,7 +10,6 @@ import kotlinx.coroutines.*
 
 private typealias Node = LinkedListNode
 /** @suppress **This is unstable API and it is subject to change.** */
-@AllowDifferentMembersInActual
 public actual typealias LockFreeLinkedListNode = LinkedListNode
 
 /** @suppress **This is unstable API and it is subject to change.** */

kotlinx-coroutines-core/jsAndWasmShared/src/internal/Synchronized.kt

@@ -10,7 +10,6 @@ import kotlinx.coroutines.*
  * @suppress **This an internal API and should not be used from general code.**
  */
 @InternalCoroutinesApi
-@Suppress("ACTUAL_CLASSIFIER_MUST_HAVE_THE_SAME_MEMBERS_AS_NON_FINAL_EXPECT_CLASSIFIER")
 public actual typealias SynchronizedObject = Any
 
 /**

kotlinx-coroutines-core/jvm/src/EventLoop.kt

@@ -8,7 +8,6 @@ import kotlinx.coroutines.Runnable
 import kotlinx.coroutines.scheduling.*
 import kotlinx.coroutines.scheduling.CoroutineScheduler
 
-@AllowDifferentMembersInActual
 internal actual abstract class EventLoopImplPlatform: EventLoop() {
     protected abstract val thread: Thread
 

kotlinx-coroutines-core/jvm/src/Executors.kt

@@ -38,7 +38,6 @@ public abstract class ExecutorCoroutineDispatcher: CoroutineDispatcher(), Closea
 }
 
 @ExperimentalCoroutinesApi
-@AllowDifferentMembersInActual
 public actual typealias CloseableCoroutineDispatcher = ExecutorCoroutineDispatcher
 
 /**

kotlinx-coroutines-core/jvm/src/SchedulerTask.kt

@@ -6,10 +6,8 @@ package kotlinx.coroutines
 
 import kotlinx.coroutines.scheduling.*
 
-@AllowDifferentMembersInActual
 internal actual typealias SchedulerTask = Task
 
-@AllowDifferentMembersInActual
 internal actual typealias SchedulerTaskContext = TaskContext
 
 @Suppress("EXTENSION_SHADOWED_BY_MEMBER")

kotlinx-coroutines-core/jvm/test/TestBase.kt

@@ -54,7 +54,6 @@ public actual typealias TestResult = Unit
  * }
  * ```
  */
-@AllowDifferentMembersInActual
 public actual open class TestBase(private var disableOutCheck: Boolean)  {
 
     actual constructor(): this(false)

kotlinx-coroutines-core/native/src/internal/Concurrent.kt

@@ -5,11 +5,13 @@
 package kotlinx.coroutines.internal
 
 import kotlinx.atomicfu.*
+import kotlinx.cinterop.*
 import kotlinx.atomicfu.locks.withLock as withLock2
 
 @Suppress("ACTUAL_WITHOUT_EXPECT")
 internal actual typealias ReentrantLock = kotlinx.atomicfu.locks.SynchronizedObject
 
+@OptIn(UnsafeNumber::class)
 internal actual inline fun <T> ReentrantLock.withLock(action: () -> T): T = this.withLock2(action)
 
 internal actual fun <E> identitySet(expectedSize: Int): MutableSet<E> = HashSet()

kotlinx-coroutines-core/native/src/internal/Synchronized.kt

@@ -4,18 +4,19 @@
 
 package kotlinx.coroutines.internal
 
+import kotlinx.cinterop.*
 import kotlinx.coroutines.*
 import kotlinx.atomicfu.locks.withLock as withLock2
 
 /**
  * @suppress **This an internal API and should not be used from general code.**
  */
 @InternalCoroutinesApi
-@AllowDifferentMembersInActual
 public actual typealias SynchronizedObject = kotlinx.atomicfu.locks.SynchronizedObject
 
 /**
  * @suppress **This an internal API and should not be used from general code.**
  */
+@OptIn(UnsafeNumber::class)
 @InternalCoroutinesApi
 public actual inline fun <T> synchronizedImpl(lock: SynchronizedObject, block: () -> T): T = lock.withLock2(block)

kotlinx-coroutines-core/native/test/ConcurrentTestUtilities.kt

@@ -25,7 +25,6 @@ private object BlackHole {
     var sink = 1
 }
 
-@AllowDifferentMembersInActual
 internal actual typealias SuppressSupportingThrowable = SuppressSupportingThrowableImpl
 
 actual val Throwable.suppressed: Array<Throwable>

kotlinx-coroutines-core/wasmJs/src/CompletionHandler.kt

@@ -6,14 +6,12 @@ package kotlinx.coroutines
 
 import kotlinx.coroutines.internal.*
 
-@AllowDifferentMembersInActual
 internal actual abstract class CompletionHandlerBase actual constructor() : LockFreeLinkedListNode(), CompletionHandler {
     actual abstract override fun invoke(cause: Throwable?)
 }
 
 internal actual inline val CompletionHandlerBase.asHandler: CompletionHandler get() = this
 
-@AllowDifferentMembersInActual
 internal actual abstract class CancelHandlerBase actual constructor() : CompletionHandler {
     actual abstract override fun invoke(cause: Throwable?)
 }

kotlinx-coroutines-core/wasmJs/src/JSDispatcher.kt

@@ -7,7 +7,6 @@ package kotlinx.coroutines
 import org.w3c.dom.Window
 import kotlin.js.*
 
-@AllowDifferentMembersInActual
 public actual typealias W3CWindow = Window
 
 internal actual fun w3cSetTimeout(window: W3CWindow, handler: () -> Unit, timeout: Int): Int =