GH-3530: The Sql2008ClientDriver does not implement the DbDataReader.…

…Get* methods. Enacapsulte their DbDataReader with the DirectCastDbDataReader.

src/NHibernate/Driver/Sql2008ClientDriver.cs

@@ -1,12 +1,14 @@
 using System;
 using System.Data;
 using System.Data.Common;
+using NHibernate.AdoNet;
 using NHibernate.Util;
 
 namespace NHibernate.Driver
 {
 	public class Sql2008ClientDriver : SqlClientDriver
 	{
+
 		const byte MaxTime = 5;
 
 		#if NETFX
@@ -34,5 +36,24 @@ protected override void InitializeParameter(DbParameter dbParam, string name, Sq
 
 		/// <inheritdoc />
 		public override DateTime MinDate => DateTime.MinValue;
+
+		private partial class Sql2008DbCommandWrapper : DbCommandWrapper
+		{
+			public Sql2008DbCommandWrapper(DbCommand command) : base(command) { }
+
+			protected override DbDataReader ExecuteDbDataReader(CommandBehavior behavior)
+			{
+				var reader = Command.ExecuteReader(behavior);
+
+				return new DirectCastDbDataReader(reader);
+			}
+		}
+
+		public override DbCommand CreateCommand()
+		{
+			var cmd = base.CreateCommand();
+
+			return new Sql2008DbCommandWrapper(cmd);
+		}
 	}
 }