Supress SA1402 in different way

Author: hazzik

src/NHibernate.Test/AssemblyInfo.cs

@@ -1,11 +1,8 @@
 using System;
-using System.Diagnostics.CodeAnalysis;
 using System.Reflection;
 using NUnit.Framework;
 
 [assembly: CLSCompliant(false)]
 [assembly: AssemblyDelaySign(false)]
 
 [assembly: LevelOfParallelism(0)]
-
-[assembly: SuppressMessage("StyleCop.CSharp.MaintainabilityRules", "SA1402:FileMayOnlyContainASingleType")]

src/NHibernate.Test/Settings.StyleCop

@@ -0,0 +1,14 @@
+<StyleCopSettings Version="105">
+  <Analyzers>
+    <Analyzer AnalyzerId="StyleCop.CSharp.MaintainabilityRules">
+      <Rules>
+        <Rule Name="FileMayOnlyContainASingleClass">
+          <RuleSettings>
+            <BooleanProperty Name="Enabled">False</BooleanProperty>
+          </RuleSettings>
+        </Rule>
+      </Rules>
+      <AnalyzerSettings />
+    </Analyzer>
+  </Analyzers>
+</StyleCopSettings>