newEntries.put(ent.getKey().accept(this), ent.getValue().accept(this));
}
IMapWriter writer = vf.mapWriter(calcLub(newEntries.keySet()), calcLub(newEntries.values()));
writer.putAll(newEntries);
return writer.done();
}
@Override
public IValue visitConstructor(IConstructor o)
throws RuntimeException {