Please move TypeHelperExtensionMethods to a more internal namespace, e.g.: NHibernate.Linq.Internals, etc.

Why?
Because ForEach() is unfortunately not built in .NET Framework, it has caused everyone to define his own ForEach() in his own library. And when those libraries used together, along with NH, things would mess up as it would cause ambiguous reference issue, especially when NHibernate.Linq is being used which is often, if not always.