include: Add definitions for Win8 pseudo handles.

include/winbase.h

@@ -2973,6 +2973,10 @@ WINBASEAPI VOID        WINAPI SetLastError(DWORD);
 #define GetCurrentThread()  ((HANDLE)~(ULONG_PTR)1)
 #endif
 
+#define GetCurrentProcessToken()            ((HANDLE)~(ULONG_PTR)3)
+#define GetCurrentThreadToken()             ((HANDLE)~(ULONG_PTR)4)
+#define GetCurrentThreadEffectiveToken()    ((HANDLE)~(ULONG_PTR)5)
+
 /* WinMain(entry point) must be declared in winbase.h. */
 /* If this is not declared, we cannot compile many sources written with C++. */
 int WINAPI WinMain(HINSTANCE,HINSTANCE,LPSTR,int);