Don't load Object as a supertype for Java classes

#KT-4890 In Progress
 #KT-5002 Fixed

compiler/testData/codegen/box/samConstructors/sameWrapperClass.kt

@@ -1,7 +1,7 @@
 fun box(): String {
     val f = { }
-    val class1 = Runnable(f).getClass()
-    val class2 = Runnable(f).getClass()
+    val class1 = (Runnable(f) as Object).getClass()
+    val class2 = (Runnable(f) as Object).getClass()
 
     return if (class1 == class2) "OK" else "$class1 $class2"
-}
+}