[migration] Kotlin 1.9.20: KT-58362

Author: FenstonSingel

core/darwin/src/Converters.kt

@@ -3,7 +3,10 @@
  * Use of this source code is governed by the Apache 2.0 License that can be found in the LICENSE.txt file.
  */
 
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+
 package kotlinx.datetime
+
 import kotlinx.cinterop.*
 import platform.Foundation.*
 

core/darwin/test/ConvertersTest.kt

@@ -94,6 +94,7 @@ class ConvertersTest {
         assertEquals(str + "Z", dateFormatter.stringFromDate(nsDate))
     }
 
+    @OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
     private fun zoneOffsetCheck(timeZone: FixedOffsetTimeZone, hours: Int, minutes: Int) {
         val nsTimeZone = timeZone.toNSTimeZone()
         val kotlinTimeZone = nsTimeZone.toKotlinTimeZone()

core/native/cinterop_actuals/TimeZoneNative.kt

@@ -2,6 +2,9 @@
  * Copyright 2019-2020 JetBrains s.r.o.
  * Use of this source code is governed by the Apache 2.0 License that can be found in the LICENSE.txt file.
  */
+
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+
 package kotlinx.datetime
 
 import kotlinx.datetime.internal.*