Make _XCloneable.checkImplementationID return a useful value again

...it happened to return a value that would match one's expectaions until
f1dfc569 "cid#1326854 EC: Comparing incompatible
types for equality" fixed the method but failed to also straighten its odd
return value.

Change-Id: I9b98be8c86a176fec37505d4337b708ac9bbf5de

qadevOOo/tests/java/ifc/util/_XCloneable.java

@@ -74,7 +74,7 @@ public class _XCloneable extends MultiMethodTest {
             log.println("ImplementationID equals the clone has the same id as the original Object");
             log.println("------------------------------------------------------------------------");
         }
-        return !res;
+        return res;
     }
 
     protected String getImplementationName(XInterface ifc) {