mi: switch the EQ to contain InternalEvents only.

This gets rid of the nevents parameter, InternalEvents are always a single
item per event. Also remove the special DeviceValuator handling in both
enqueueing and dequeueing.

Custom callback handlers are now broken until fixed.

For bisectability, we copy the InternalEvent back into the XI required during
POE and friends. Consider this a temporary solution.

Note: Because of misc linker bonghits, Xvfb won't link in this revision.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

mi/mi.h

@@ -57,6 +57,7 @@ SOFTWARE.
 #include "cursor.h"
 #include "privates.h"
 #include "colormap.h"
+#include "events.h"
 
 #define MiBits	CARD32
 
@@ -201,7 +202,7 @@ extern _X_EXPORT void mieqResizeEvents(
 
 extern _X_EXPORT void mieqEnqueue(
     DeviceIntPtr /*pDev*/,
-    xEventPtr /*e*/
+    InternalEvent* /*e*/
 );
 
 extern _X_EXPORT void mieqSwitchScreen(