[K/N][Tests] Migrate objcSmoke & objcTests tests

^KT-61259

native/native.tests/testData/interop/objc/tests/sharing.kt

@@ -0,0 +1,34 @@
+@file:OptIn(kotlin.experimental.ExperimentalNativeApi::class, FreezingIsDeprecated::class, ObsoleteWorkersApi::class)
+
+import kotlinx.cinterop.*
+import kotlin.native.concurrent.*
+import kotlin.test.*
+import objcTests.*
+
+private class NSObjectImpl : NSObject() {
+    var x = 111
+}
+
+// Also see counterpart interop/objc/illegal_sharing.kt
+@Test fun testSharing() = withWorker {
+    val obj = NSObjectImpl()
+    val array = nsArrayOf(obj)
+
+    assertFalse(obj.isFrozen)
+
+    obj.x = 222
+
+    if (Platform.isFreezingEnabled) {
+        obj.freeze()
+        assertTrue(obj.isFrozen)
+        runInWorker {
+            val obj1 = array.objectAtIndex(0) as NSObjectImpl
+            assertFailsWith<InvalidMutabilityException> {
+                obj1.x = 333
+            }
+        }
+        assertEquals(222, obj.x)
+    }
+
+    // TODO: test [obj release] etc.
+}