[K/N][Tests] Move filecheck and cinterop tests to /native/

^KT-61259

native/native.tests/testData/codegen/cinterop/packages/dotFnameNested2.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2024 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.
+ */
+// TARGET_BACKEND: NATIVE
+// MODULE: cinterop
+// FILE: filename1.filename2.def
+package package1.package2
+---
+#define OK_STRING "OK"
+
+// MODULE: main(cinterop)
+// FILE: main.kt
+@file:OptIn(kotlinx.cinterop.ExperimentalForeignApi::class)
+import package1.package2.*
+
+fun box(): String = OK_STRING