slider: Export the part class

It needs to be exposed for things like c++ and others to work.

src/lib/elementary/Elementary.h

@@ -290,7 +290,6 @@ EAPI extern Elm_Version *elm_version;
 # include <efl_ui_text_async.eo.h>
 # include <efl_ui_clock.eo.h>
 # include <efl_ui_image_factory.eo.h>
-# include <efl_ui_slider_interval.eo.h>
 #endif
 
 /* include deprecated calls last of all */

src/lib/elementary/efl_ui_slider.c

@@ -12,8 +12,6 @@
 #include "elm_priv.h"
 #include "efl_ui_slider_private.h"
 #include "elm_widget_layout.h"
-
-#include "efl_ui_slider_part.eo.h"
 #include "elm_part_helper.h"
 
 #define MY_CLASS EFL_UI_SLIDER_CLASS

src/lib/elementary/elm_slider.h

@@ -77,6 +77,8 @@
 #include "elm_slider_common.h"
 #ifdef EFL_EO_API_SUPPORT
 #include "efl_ui_slider_eo.h"
+#include "efl_ui_slider_part.eo.h"
+#include <efl_ui_slider_interval.eo.h>
 #endif
 #ifndef EFL_NOLEGACY_API_SUPPORT
 #include "elm_slider_legacy.h"