Migrate from deprecated API and fix compilation warnings where possible

Author: qwwdfsad

gradle.properties

@@ -56,3 +56,4 @@ jekyll_version=4.0
 org.gradle.jvmargs=-Xmx4g
 
 kotlin.mpp.enableCompatibilityMetadataVariant=true
+kotlin.mpp.stability.nowarn=true

gradle/opt-in.gradle

@@ -3,6 +3,7 @@
  */
 
 ext.optInAnnotations = [
+        "kotlin.RequiresOptIn",
         "kotlin.experimental.ExperimentalTypeInference",
         "kotlin.ExperimentalMultiplatform",
         "kotlinx.coroutines.DelicateCoroutinesApi",

kotlinx-coroutines-core/common/src/channels/AbstractChannel.kt

@@ -136,6 +136,7 @@ internal abstract class AbstractSendChannel<E>(
         return sendSuspend(element)
     }
 
+    @Suppress("DEPRECATION")
     override fun offer(element: E): Boolean {
         // Temporary migration for offer users who rely on onUndeliveredElement
         try {

kotlinx-coroutines-core/common/src/flow/SharedFlow.kt

@@ -469,7 +469,7 @@ private class SharedFlowImpl<T>(
         // outside of the lock: register dispose on cancellation
         emitter?.let { cont.disposeOnCancellation(it) }
         // outside of the lock: resume slots if needed
-        for (cont in resumes) cont?.resume(Unit)
+        for (r in resumes) r?.resume(Unit)
     }
 
     private fun cancelEmitter(emitter: Emitter) = synchronized(this) {

kotlinx-coroutines-core/common/src/internal/StackTraceRecovery.common.kt

@@ -20,6 +20,7 @@ internal expect fun <E: Throwable> recoverStackTrace(exception: E, continuation:
 /**
  * initCause on JVM, nop on other platforms
  */
+@Suppress("EXTENSION_SHADOWED_BY_MEMBER")
 internal expect fun Throwable.initCause(cause: Throwable)
 
 /**

kotlinx-coroutines-core/common/test/selects/SelectTimeoutDurationTest.kt

@@ -14,15 +14,15 @@ class SelectTimeoutDurationTest : TestBase() {
     fun testBasic() = runTest {
         expect(1)
         val result = select<String> {
-            onTimeout(1000.milliseconds) {
+            onTimeout(Duration.milliseconds(1000)) {
                 expectUnreached()
                 "FAIL"
             }
-            onTimeout(100.milliseconds) {
+            onTimeout(Duration.milliseconds(100)) {
                 expect(2)
                 "OK"
             }
-            onTimeout(500.milliseconds) {
+            onTimeout(Duration.milliseconds(500)) {
                 expectUnreached()
                 "FAIL"
             }
@@ -35,7 +35,7 @@ class SelectTimeoutDurationTest : TestBase() {
     fun testZeroTimeout() = runTest {
         expect(1)
         val result = select<String> {
-            onTimeout(1.seconds) {
+            onTimeout(Duration.seconds(1)) {
                 expectUnreached()
                 "FAIL"
             }
@@ -52,11 +52,11 @@ class SelectTimeoutDurationTest : TestBase() {
     fun testNegativeTimeout() = runTest {
         expect(1)
         val result = select<String> {
-            onTimeout(1.seconds) {
+            onTimeout(Duration.seconds(1)) {
                 expectUnreached()
                 "FAIL"
             }
-            onTimeout(-10.milliseconds) {
+            onTimeout(-Duration.milliseconds(10)) {
                 expect(2)
                 "OK"
             }
@@ -71,13 +71,13 @@ class SelectTimeoutDurationTest : TestBase() {
         val iterations =10_000
         for (i in 0..iterations) {
             val result = selectUnbiased<Int> {
-                onTimeout(-1.seconds) {
+                onTimeout(-Duration.seconds(1)) {
                     0
                 }
                 onTimeout(Duration.ZERO) {
                     1
                 }
-                onTimeout(1.seconds) {
+                onTimeout(Duration.seconds(1)) {
                     expectUnreached()
                     2
                 }

kotlinx-coroutines-core/jvm/src/channels/Actor.kt

@@ -163,7 +163,7 @@ private class LazyActorCoroutine<E>(
         return super.send(element)
     }
 
-    @Suppress("DEPRECATION_ERROR")
+    @Suppress("DEPRECATION")
     override fun offer(element: E): Boolean {
         start()
         return super.offer(element)

kotlinx-coroutines-core/jvm/src/internal/StackTraceRecovery.kt

@@ -216,6 +216,7 @@ internal actual typealias CoroutineStackFrame = kotlin.coroutines.jvm.internal.C
 @Suppress("ACTUAL_WITHOUT_EXPECT")
 internal actual typealias StackTraceElement = java.lang.StackTraceElement
 
+@Suppress("EXTENSION_SHADOWED_BY_MEMBER")
 internal actual fun Throwable.initCause(cause: Throwable) {
     // Resolved to member, verified by test
     initCause(cause)