Update Restrictions.cs
Update Restrictions.cs

Fixed "is not empty" comments for IsEmpty method
nhibernate/nhibernate-core,RogerKratz/nhibernate-core,RogerKratz/nhibernate-core,gliljas/nhibernate-core,gliljas/nhibernate-core,hazzik/nhibernate-core,ngbrown/nhibernate-core,nhibernate/nhibernate-core,ngbrown/nhibernate-core,hazzik/nhibernate-core,hazzik/nhibernate-core,gliljas/nhibernate-core,ngbrown/nhibernate-core,fredericDelaporte/nhibernate-core,RogerKratz/nhibernate-core,fredericDelaporte/nhibernate-core,fredericDelaporte/nhibernate-core,gliljas/nhibernate-core,RogerKratz/nhibernate-core,hazzik/nhibernate-core,nhibernate/nhibernate-core,nhibernate/nhibernate-core,fredericDelaporte/nhibernate-core