patch applied (packages/Win32): hide re-exported System.Win32.Types names

[Ross Paterson]

Thu May 11 04:05:27 PDT 2006  Esa Ilari Vuokko <ei at vuokko.info>
  * hide re-exported System.Win32.Types names
  
  These symbols defined in System.Win32.Types are re-exported by
  System.Win32.NLS.  Hiding them removes a multiple-import warning.

    M ./System/Win32.hs -1 +4