winex11: Add a trace in ExtEscape to make wgl problems easier to diagnose.

dlls/winex11.drv/init.c

@@ -346,6 +346,9 @@ INT X11DRV_ExtEscape( X11DRV_PDEVICE *physDev, INT escape, INT in_count, LPCVOID
                     wine_tsx11_lock();
                     XSetSubwindowMode( gdi_display, physDev->gc, data->mode );
                     wine_tsx11_unlock();
+                    TRACE( "SET_DRAWABLE hdc %p drawable %lx gl_drawable %lx pf %u dc_rect %s drawable_rect %s\n",
+                           physDev->hdc, physDev->drawable, physDev->gl_drawable, physDev->current_pf,
+                           wine_dbgstr_rect(&physDev->dc_rect), wine_dbgstr_rect(&physDev->drawable_rect) );
                     return TRUE;
                 }
                 break;