This change is necessary to fix a segfault in intel driver at CloseScreen.
sna_early_close_screen() releases the cursor using FreeCursor(), which needs
miDCScreen private of pScreen. It has already been released by miDCCloseScreen(),
which is a pre-hook, and segfault occurs. Hence it is necessary to move
miDCCloseScreen() to post-hooks.
Signed-off-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
5d2315b6e6