Migrate boxWithJava tests to multi-file framework

compiler/testData/codegen/java8/box/invokeDefaultViaSuper.kt

@@ -0,0 +1,42 @@
+// FILE: Test.java
+
+public interface Test {
+    default String test() {
+        return "OK";
+    }
+}
+
+// FILE: test.kt
+
+interface KInterface : Test {
+
+}
+
+class KClass : Test {
+    fun ktest(): String {
+        return super.test() + test()
+    }
+}
+
+class KTClass : KInterface {
+    fun ktest(): String {
+        return super.test() + test()
+    }
+}
+
+
+fun box(): String {
+    val p = object : KInterface {
+        fun ktest(): String {
+            return super.test() + test()
+        }
+    }.ktest()
+
+    if (p != "OKOK") return "fail1: $p"
+
+    if (KClass().ktest() != "OKOK") return "fail 2: ${KClass().ktest()}"
+
+    if (KTClass().ktest() != "OKOK") return "fail 3: ${KTClass().ktest()}"
+
+    return "OK"
+}