New test for jvm8 nondefaults target

compiler/testData/codegen/java8/box/jvm8/kt14243_prop.kt

@@ -0,0 +1,23 @@
+// JVM_TARGET: 1.8
+
+interface Z<T> {
+    val value: T
+
+    val z: T
+        get() = value
+}
+
+open class ZImpl : Z<String> {
+    override val value: String
+        get() = "OK"
+}
+
+open class ZImpl2 : ZImpl() {
+    override val z: String
+        get() = super.z
+}
+
+
+fun box(): String {
+    return ZImpl2().value
+}