[K/N] Move kotlin.native.internal.GC into kotlin.native.runtime

As a part of efforts to stabilize Native stdlib #KT-55765.

kotlin-native/backend.native/tests/runtime/workers/atomic1.kt

@@ -4,11 +4,13 @@
  */
 
 // Note: This test reproduces a race, so it'll start flaking if problem is reintroduced.
+@file:OptIn(kotlin.native.runtime.NativeRuntimeApi::class)
 
 import kotlin.test.*
 
 import kotlin.native.concurrent.*
 import kotlin.native.internal.*
+import kotlin.native.runtime.GC
 
 val thrashGC = AtomicInt(1)
 val canStartCreating = AtomicInt(0)

kotlin-native/backend.native/tests/runtime/workers/freeze6.kt

@@ -2,7 +2,7 @@
  * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
  * that can be found in the LICENSE file.
  */
-@file:OptIn(FreezingIsDeprecated::class)
+@file:OptIn(FreezingIsDeprecated::class, kotlin.native.runtime.NativeRuntimeApi::class)
 
 package runtime.workers.freeze6
 
@@ -48,7 +48,7 @@ var global = 0
 @Test
 fun ensureFreezableHandlesCycles1() {
     val ref = createRef1()
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
 
     val obj: Any = ref
     global = obj.hashCode()
@@ -86,7 +86,7 @@ fun createRef2(): Pair<FreezableAtomicReference<Node?>, Any> {
 @Test
 fun ensureFreezableHandlesCycles2() {
     val (ref, obj) = createRef2()
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
 
     assertTrue(obj.toString().length > 0)
     global = ref.value!!.ref!!.hashCode()
@@ -108,7 +108,7 @@ fun createRef3(): FreezableAtomicReference<Any?> {
 fun ensureFreezableHandlesCycles3() {
     val ref = createRef3()
     ref.value = null
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
 
     val obj: Any = ref
     assertTrue(obj.toString().length > 0)
@@ -133,7 +133,7 @@ fun ensureWeakRefNotLeaks1() {
     ref.value = null
     // We cannot check weakRef.get() here, as value read will be stored in the stack slot,
     // and thus hold weak reference from release.
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
 
     assertTrue(weakRef.get() == null)
 }
@@ -155,6 +155,6 @@ fun createRef5() {
 @Test
 fun ensureWeakRefNotLeaks2() {
     createRef5()
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
     assertTrue(weakNode2.get() == null)
 }

kotlin-native/backend.native/tests/runtime/workers/lazy2.kt

@@ -24,8 +24,9 @@ fun printAll() {
 // initializer field in frozen lazy object led to the crash, induced by breaking frozen objects'
 // invariant (initializer end up in the same container as the lazy object itself, so it was destroyed
 // earlier than it should when reference counter was decremented).
+@OptIn(kotlin.native.runtime.NativeRuntimeApi::class)
 fun main(args: Array<String>) {
     printAll()
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
     println("OK")
 }

kotlin-native/backend.native/tests/runtime/workers/lazy3.kt

@@ -1,4 +1,4 @@
-@file:OptIn(FreezingIsDeprecated::class)
+@file:OptIn(FreezingIsDeprecated::class, kotlin.native.runtime.NativeRuntimeApi::class)
 
 import kotlin.native.concurrent.*
 import kotlin.native.ref.*
@@ -49,7 +49,7 @@ fun ensureGetsCollectedFrozenAndNotFrozen(create: () -> Any) {
 
 fun ensureGetsCollected(create: () -> Any) {
     val ref = makeWeakRef(create)
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
     assertNull(ref.get())
 }
 

kotlin-native/backend.native/tests/runtime/workers/worker10.kt

@@ -1,4 +1,4 @@
-@file:OptIn(FreezingIsDeprecated::class, kotlin.experimental.ExperimentalNativeApi::class)
+@file:OptIn(FreezingIsDeprecated::class, kotlin.experimental.ExperimentalNativeApi::class, kotlin.native.runtime.NativeRuntimeApi::class)
 package runtime.workers.worker10
 
 import kotlin.test.*
@@ -99,7 +99,7 @@ val semaphore = AtomicInt(0)
     }
     while (semaphore.value != 1) {}
     atomicRef.value = null
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
     semaphore.increment()
     future.result
     worker.requestTermination().result
@@ -116,7 +116,7 @@ val semaphore = AtomicInt(0)
     }
     while (semaphore.value != 1) {}
     stableRef.dispose()
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
     semaphore.increment()
     future.result
     worker.requestTermination().result
@@ -135,12 +135,12 @@ val stableHolder1 = StableRef.create(("hello" to "world").freeze())
         ensureWeakIs(it, "hello" to "world")
         semaphore.increment()
         while (semaphore.value != 2) {}
-        kotlin.native.internal.GC.collect()
+        kotlin.native.runtime.GC.collect()
         ensureWeakIs(it, null)
     }
     while (semaphore.value != 1) {}
     stableHolder1.dispose()
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
     semaphore.increment()
     future.result
     worker.requestTermination().result
@@ -155,12 +155,12 @@ val stableHolder2 = StableRef.create(("hello" to "world").freeze())
         val value = it.get()
         semaphore.increment()
         while (semaphore.value != 2) {}
-        kotlin.native.internal.GC.collect()
+        kotlin.native.runtime.GC.collect()
         assertEquals("hello" to "world", value)
     }
     while (semaphore.value != 1) {}
     stableHolder2.dispose()
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
     semaphore.increment()
     future.result
     worker.requestTermination().result
@@ -178,7 +178,7 @@ val atomicRef2 = AtomicReference<Any?>(Any().freeze())
     }
     while (semaphore.value != 1) {}
     atomicRef2.value = null
-    kotlin.native.internal.GC.collect()
+    kotlin.native.runtime.GC.collect()
     semaphore.increment()
     future.result
     worker.requestTermination().result

kotlin-native/backend.native/tests/runtime/workers/worker9.kt

@@ -80,12 +80,13 @@ fun makeCyclic(): Node {
     return outer
 }
 
+@OptIn(kotlin.native.runtime.NativeRuntimeApi::class)
 @Test fun runTest4() {
     val worker = Worker.start()
 
     val future = worker.execute(TransferMode.SAFE, { }) {
         makeCyclic().also {
-            kotlin.native.internal.GC.collect()
+            kotlin.native.runtime.GC.collect()
         }
     }
     assert(future.result != null)

kotlin-native/backend.native/tests/runtime/workers/worker9_experimentalMM.kt

@@ -78,12 +78,13 @@ fun makeCyclic(): Node {
     return outer
 }
 
+@OptIn(kotlin.native.runtime.NativeRuntimeApi::class)
 @Test fun runTest4() {
     val worker = Worker.start()
 
     val future = worker.execute(TransferMode.SAFE, { }) {
         makeCyclic().also {
-            kotlin.native.internal.GC.collect()
+            kotlin.native.runtime.GC.collect()
         }
     }
     assert(future.result != null)