Revert "mi: unexport miWindowExposures()"

libwfb.so has a reference to this function:

 $ nm -D ./build.debug/hw/xfree86/dixmods/libwfb.so | grep miWindowExposures
                  U miWindowExposures

This reverts commit e424f49cdb.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>

hw/xnest/Window.c

@@ -27,6 +27,8 @@ is" without express or implied warranty.
 #include "scrnintstr.h"
 #include "region.h"
 
+#include "mi.h"
+
 #include "Xnest.h"
 
 #include "Display.h"

mi/mi.h

@@ -127,6 +127,9 @@ extern _X_EXPORT RegionPtr miHandleExposures(DrawablePtr /*pSrcDrawable */ ,
                                              int /*dsty */
     );
 
+extern _X_EXPORT void miWindowExposures(WindowPtr /*pWin */ ,
+                                        RegionPtr /*prgn */);
+
 extern _X_EXPORT void miClearDrawable(DrawablePtr /*pDraw */ ,
                                       GCPtr     /*pGC */
     );

mi/mi_priv.h

@@ -47,7 +47,6 @@ typedef void (*mieqHandler) (int screen, InternalEvent *event,
 void mieqSetHandler(int event, mieqHandler handler);
 
 void miSendExposures(WindowPtr pWin, RegionPtr pRgn, int dx, int dy);
-void miWindowExposures(WindowPtr pWin, RegionPtr prgn);
 
 void miPaintWindow(WindowPtr pWin, RegionPtr prgn, int what);
 

mi/miscrinit.c

@@ -34,6 +34,7 @@ from The Open Group.
 
 #include "servermd.h"
 #include "misc.h"
+#include "mi.h"
 #include "scrnintstr.h"
 #include "pixmapstr.h"
 #include "dix.h"