Add new collection operation queue mechanism (#2010)

Author: maca88

src/NHibernate.Test/Async/Extralazy/ExtraLazyFixture.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace NHibernate.Test.Extralazy
+{
+	public class Company
+	{
+		protected Company() { }
+
+		public Company(string name, int index, User owner)
+		{
+			Name = name;
+			Owner = owner;
+			OriginalIndex = ListIndex = index;
+		}
+
+		public virtual int Id { get; set; }
+
+		public virtual int ListIndex { get; set; }
+
+		public virtual int OriginalIndex { get; set; }
+
+		public virtual string Name { get; set; }
+
+		public virtual User Owner { get; set; }
+	}
+}

src/NHibernate.Test/Extralazy/Company.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace NHibernate.Test.Extralazy
+{
+	public class CreditCard
+	{
+		protected CreditCard() { }
+
+		public CreditCard(string name, int index, User owner)
+		{
+			Name = name;
+			Owner = owner;
+			OriginalIndex = ListIndex = index;
+		}
+
+		public virtual int Id { get; set; }
+
+		public virtual int ListIndex { get; set; }
+
+		public virtual int OriginalIndex { get; set; }
+
+		public virtual string Name { get; set; }
+
+		public virtual User Owner { get; set; }
+	}
+}