java classes should extend java.lang.Object

#KT-1121 fixed

compiler/testData/readJavaBinaryClass/javaBean/JavaBeanVal.kt

@@ -1,6 +1,6 @@
 package test
 
-open class JavaBeanVal() {
+open class JavaBeanVal() : java.lang.Object() {
     open fun getColor(): String? = ""
     //val color: String? = ""
 }