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

^KT-65979

compiler/testData/codegen/box/bridges/test0.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010-2018 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.*
+
+// vtable call
+open class A {
+    open fun foo(): Any = "A"
+}
+
+open class C : A() {
+    override fun foo(): Int = 42
+}
+
+fun box(): String {
+    val c = C()
+    val a: A = c
+    val res1 = c.foo().toString()
+    if (res1 != "42") return "FAIL 1: $res1"
+    val res2 = a.foo().toString()
+    if (res2 != "42") return "FAIL 2: $res2"
+
+    return "OK"
+}