Fixes #2621

Special treatment of enums mapped on string columns because all reasons
for checking string lengths or streamlining the length of parameters of
queries on string columns to the length of the column for SQL Server
are also valid for enums because they are sometimes by convention used
to model the possible values of a string column

Author: wvopt

src/NHibernate.Test/NHSpecificTest/GH2621Enum/Fixture.cs

@@ -7,15 +7,13 @@ public class Fixture : BugTestCase
 		[Test]
 		public void TestOk()
 		{
-			using (ISession s = OpenSession())
+			using (var s = OpenSession())
+			using (s.BeginTransaction())
 			{
-				using (ITransaction t = s.BeginTransaction())
-				{
-					var query = s.CreateQuery(@"
-							SELECT Name FROM NHibernate.Test.NHSpecificTest.GH2620Enum.ClassWithString ROOT WHERE ROOT.Kind = :kind");
-					query.SetParameter("kind", Kind.SomeKind);
-					Assert.DoesNotThrow(() => query.List());
-				}
+				var query = s.CreateQuery(
+					@"SELECT Name FROM NHibernate.Test.NHSpecificTest.GH2621Enum.ClassWithString ROOT WHERE ROOT.Kind = :kind");
+				query.SetParameter("kind", Kind.SomeKind);
+				Assert.DoesNotThrow(() => query.List());
 			}
 		}
 	}