NH-2921 - Mark properties of proxy class with SpecialName attribute.

Author: hazzik

src/NHibernate/Proxy/DynamicProxy/DefaultProxyMethodBuilder.cs

@@ -34,8 +34,12 @@ public DefaultyProxyMethodBuilder(IMethodBodyEmitter emitter)
 
 public void CreateProxiedMethod(FieldInfo field, MethodInfo method, TypeBuilder typeBuilder)
 {
-const MethodAttributes methodAttributes = MethodAttributes.Public | MethodAttributes.HideBySig |
-MethodAttributes.Virtual;
+//TODO: Should we use attributes of base method?
+var methodAttributes = MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Virtual;
+
+if (method.IsSpecialName)
+methodAttributes |= MethodAttributes.SpecialName;
+
 ParameterInfo[] parameters = method.GetParameters();
 
 MethodBuilder methodBuilder = typeBuilder.DefineMethod(method.Name, methodAttributes,