Mark _queryable as [NonSerialized]

Author: hazzik

src/NHibernate/Collection/Generic/PersistentGenericBag.cs

@@ -509,6 +509,7 @@ public override string ToString()
 
 		#region IQueryable<T> Members
 
+		[NonSerialized]
 		IQueryable<T> _queryable;
 
 		Expression IQueryable.Expression => InnerQueryable.Expression;

src/NHibernate/Collection/Generic/PersistentGenericList.cs

@@ -512,6 +512,7 @@ IEnumerator<T> IEnumerable<T>.GetEnumerator()
 
 		#region IQueryable<T> Members
 
+		[NonSerialized]
 		IQueryable<T> _queryable;
 
 		Expression IQueryable.Expression => InnerQueryable.Expression;

src/NHibernate/Collection/Generic/PersistentGenericSet.cs

@@ -523,6 +523,7 @@ public IEnumerator<T> GetEnumerator()
 
 		#region IQueryable<T> Members
 
+		[NonSerialized]
 		IQueryable<T> _queryable;
 
 		Expression IQueryable.Expression => InnerQueryable.Expression;