Suppress MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES warnings (#3896)

K2 now detects the cases that K1 misses, and
reports warnings, just in case.

Author: lunakoly

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

@@ -147,12 +147,14 @@ private open class BroadcastCoroutine<E>(
     override val channel: SendChannel<E>
         get() = this
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_WARNING") // do not remove the MULTIPLE_DEFAULTS suppression: required in K2
     @Deprecated(level = DeprecationLevel.HIDDEN, message = "Since 1.2.0, binary compatibility with versions <= 1.1.x")
     final override fun cancel(cause: Throwable?): Boolean {
         cancelInternal(cause ?: defaultCancellationException())
         return true
     }
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_WARNING") // do not remove the MULTIPLE_DEFAULTS suppression: required in K2
     final override fun cancel(cause: CancellationException?) {
         cancelInternal(cause ?: defaultCancellationException())
     }

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

@@ -136,6 +136,7 @@ public class ConflatedBroadcastChannel<E> private constructor(
  *
  * This channel is created by `BroadcastChannel(capacity)` factory function invocation.
  */
+@Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_WARNING", "MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_WHEN_NO_EXPLICIT_OVERRIDE_DEPRECATION_WARNING") // do not remove the MULTIPLE_DEFAULTS suppression: required in K2
 internal class BroadcastChannelImpl<E>(
     /**
      * Buffer capacity; [Channel.CONFLATED] when this broadcast is conflated.

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

@@ -21,12 +21,14 @@ internal open class ChannelCoroutine<E>(
         cancelInternal(defaultCancellationException())
     }
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_WARNING") // do not remove the MULTIPLE_DEFAULTS suppression: required in K2
     @Deprecated(level = DeprecationLevel.HIDDEN, message = "Since 1.2.0, binary compatibility with versions <= 1.1.x")
     final override fun cancel(cause: Throwable?): Boolean {
         cancelInternal(defaultCancellationException())
         return true
     }
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_WARNING") // do not remove the MULTIPLE_DEFAULTS suppression: required in K2
     final override fun cancel(cause: CancellationException?) {
         if (isCancelled) return // Do not create an exception if the coroutine (-> the channel) is already cancelled
         cancelInternal(cause ?: defaultCancellationException())

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

@@ -178,6 +178,7 @@ private class LazyActorCoroutine<E>(
         return super.trySend(element)
     }
 
+    @Suppress("MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_DEPRECATION_WARNING") // do not remove the MULTIPLE_DEFAULTS suppression: required in K2
     override fun close(cause: Throwable?): Boolean {
         // close the channel _first_
         val closed = super.close(cause)