Fixed name conflict between atomics imported from kotlinx.atomicfu.* and kotlin.native.concurrent.*

Author: mvicsokolova

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

@@ -6,7 +6,7 @@ package kotlinx.coroutines.internal
 
 import kotlinx.atomicfu.*
 import kotlinx.coroutines.*
-import kotlin.native.concurrent.*
+import kotlin.native.concurrent.SharedImmutable
 
 // Returns the first segment `s` with `s.id >= id` or `CLOSED`
 // if all the segments in this linked list have lower `id` and the list is closed for further segment additions.

kotlinx-coroutines-core/common/src/sync/Semaphore.kt

@@ -9,7 +9,7 @@ import kotlinx.coroutines.*
 import kotlinx.coroutines.internal.*
 import kotlin.coroutines.*
 import kotlin.math.*
-import kotlin.native.concurrent.*
+import kotlin.native.concurrent.SharedImmutable
 
 /**
  * A counting semaphore for coroutines that logically maintains a number of available permits.