[Tests] Migrate backend-independent tests from native to compiler/testData.

^KT-65979

compiler/testData/codegen/box/devirtualization/anonymousObject.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2010-2019 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.
+ */
+// JVM_ABI_K1_K2_DIFF: KT-63864
+// WITH_STDLIB
+
+import kotlin.test.*
+
+val sb = StringBuilder()
+
+interface I {
+    fun foo()
+}
+
+fun test() {
+    val impl = object : I {
+        override fun foo() { sb.append("zzz") }
+    }
+
+    val delegating = object: I by impl { }
+
+    delegating.foo()
+}
+
+fun box(): String {
+    test()
+    assertEquals("zzz", sb.toString())
+
+    return "OK"
+}