NH-3874 - Make test pass for SqlServer CE.

SqlServer CE could not handle tables with single column which is an identity primary key.

Author: hazzik

src/NHibernate.Test/NHSpecificTest/NH3874/Fixture.cs

@@ -18,7 +18,7 @@ protected override void OnSetUp()
 			using (var session = OpenSession())
 			using (var tx = session.BeginTransaction())
 			{
-				var one = new One();
+				var one = new One { Name = "One" };
 				var two = new Two { One = one };
 				two.One.Twos = new[] { two };
 				_id = session.Save(one);

src/NHibernate.Test/NHSpecificTest/NH3874/Mappings.hbm.xml

@@ -8,7 +8,7 @@
     <id name="Id" column="Zzzz" type="IntWrapperType">
       <generator class="identity"/>
     </id>
-
+    <property name="Name" />
     <bag name="Twos" cascade="all-delete-orphan" inverse="true" lazy="true">
       <key column="WeirdId"/>
       <one-to-many class="Two"/>

src/NHibernate.Test/NHSpecificTest/NH3874/One.cs

@@ -6,6 +6,8 @@ public class One
 	{
 		public virtual IntWrapper Id { get; set; }
 
+		public virtual string Name { get; set; }
+
 		public virtual IList<Two> Twos { get; set; }
 	}
 }