Fix warnings in Native (#3957)

Author: dkhalanskyjb

buildSrc/src/main/kotlin/configure-compilation-conventions.gradle.kts

@@ -10,7 +10,7 @@ configure(subprojects) {
     if (name in sourceless) return@configure
     apply(plugin = "kotlinx-atomicfu")
     tasks.withType<KotlinCompile<*>>().configureEach {
-        val isMainTaskName = name == "compileKotlin" || name == "compileKotlinJvm"
+        val isMainTaskName = name.startsWith("compileKotlin")
         kotlinOptions {
             languageVersion = getOverriddenKotlinLanguageVersion(project)
             apiVersion = getOverriddenKotlinApiVersion(project)

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

@@ -6,6 +6,7 @@ package kotlinx.coroutines
 
 import kotlinx.atomicfu.*
 import kotlinx.coroutines.internal.*
+import kotlin.concurrent.Volatile
 import kotlin.coroutines.*
 import kotlin.jvm.*
 

kotlinx-coroutines-core/native/src/Builders.kt

@@ -2,7 +2,7 @@
  * Copyright 2016-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
 
-@file:OptIn(ExperimentalContracts::class)
+@file:OptIn(ExperimentalContracts::class, ObsoleteWorkersApi::class)
 package kotlinx.coroutines
 
 import kotlinx.cinterop.*

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

@@ -2,6 +2,8 @@
  * Copyright 2016-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
 
+@file:OptIn(ObsoleteWorkersApi::class)
+
 package kotlinx.coroutines
 
 import kotlin.coroutines.*
@@ -28,4 +30,5 @@ internal class EventLoopImpl: EventLoopImplBase() {
 
 internal actual fun createEventLoop(): EventLoop = EventLoopImpl()
 
+@Suppress("DEPRECATION")
 internal actual fun nanoTime(): Long = getTimeNanos()

kotlinx-coroutines-core/native/src/MultithreadedDispatchers.kt

@@ -2,14 +2,16 @@
  * Copyright 2016-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
 
+@file:OptIn(ObsoleteWorkersApi::class)
+
 package kotlinx.coroutines
 
 import kotlinx.atomicfu.*
 import kotlinx.coroutines.channels.*
 import kotlinx.coroutines.internal.*
 import kotlin.coroutines.*
 import kotlin.concurrent.AtomicReference
-import kotlin.native.concurrent.Worker
+import kotlin.native.concurrent.*
 import kotlin.time.*
 import kotlin.time.Duration.Companion.milliseconds
 
@@ -18,7 +20,6 @@ public actual fun newFixedThreadPoolContext(nThreads: Int, name: String): Closea
     return MultiWorkerDispatcher(name, nThreads)
 }
 
-@OptIn(ExperimentalTime::class)
 internal class WorkerDispatcher(name: String) : CloseableCoroutineDispatcher(), Delay {
     private val worker = Worker.start(name = name)
 

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

@@ -4,6 +4,8 @@
 
 package kotlinx.coroutines.internal
 
+import kotlin.native.concurrent.ThreadLocal
+
 internal actual class CommonThreadLocal<T>(private val name: Symbol) {
     @Suppress("UNCHECKED_CAST")
     actual fun get(): T = Storage[name] as T