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

^KT-65979

compiler/testData/codegen/box/lateinit/inBaseClass.kt

@@ -0,0 +1,25 @@
+/*
+ * 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.*
+
+class A(val a: Int)
+
+open class B {
+    lateinit var a: A
+}
+
+class C: B() {
+    fun foo() { a = A(42) }
+}
+
+fun box(): String {
+    val c = C()
+    c.foo()
+    assertEquals(42, c.a.a)
+
+    return "OK"
+}