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

^KT-65979

compiler/testData/codegen/box/funInterface/implIsNotFunction.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2010-2021 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.
+ */
+// WITH_STDLIB
+
+import kotlin.test.*
+
+fun interface Foo {
+    fun invoke(): String
+}
+
+fun foo(f: Foo) = f is Function<*>
+
+fun box(): String {
+    assertFalse(foo { "zzz" })
+    return "OK"
+}