System.Win32.Types to base library?

[Felix Martini]

> NO, because this will lead again to non-upgradability hell. other
> libraries will need to import these types from different places
> depending on GHC version where they are runned

Ok, so how about a new module in base for Windows API error handling?
E.g. a Foreign.C.Error.Win32 module which resembles Foreign.C.Error.