winbase.h dependency problems - dll separation issues

[Mike McCormack]

winbase.h shouldn't be included when compiling ntdll, as it is the 
header for kernel32.dll.

The attached patch removes winbase.h from the server call headers, 
exposing a number of dependency problems in ntdll.

wine_server_call_err seems to be misplaced in wine/server.h as it uses 
kernel32.SetLastError(), and it is the only function which requires 
winebase.h to be included.  Perhaps it should be converted to a macro or 
only defined when winbase.h is already included, as I have done in this 
patch?

Mike