The following code snippet will not compile.  I get an error C2337 saying
that the flags attribute is not found, however, if I remove the last
namespace System from the namespace tree, then it compiles fine.  What
gives?

#pragma once

using namespace System;

namespace TestA
{
  namespace TestB
  {
     namespace System
    {
        [Flags]
        public __value enum SchedDayType
        {
           SPECIAL=0,
           MON=1,
           TUE=2,
           WED=4,
           THU=8,
           FRI=16,
           SAT=32,
           SUN=64,
           WEEKDAY=MON|TUE|WED|THU|FRI,
           WEEKEND=SAT|SUN,
           EVERYDAY=WEEKDAY|WEEKEND
        };
     }
  }
}