[K/N][Tests] Migrate framework and objcexport tests

^KT-61259

native/native.tests/testData/framework/objcexport/library/library.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
+package library
+
+interface I {
+    val data: String
+}
+
+class A(override val data: String): I
+
+enum class E(val data: String) {
+    A("Enum entry A"),
+    B("Enum entry B"),
+    C("Enum entry C")
+}