elm: fixed wrong internal variable name.

Unified the local variable name to ret if the ret is a return value of
another content_unset calls.
- Evas_Object *int_ret --> Evas_Object *ret
- Evas_Object *int_content --> Evas_Object *ret
- Evas_Object *content --> Evas_Object *ret

legacy/elementary/src/lib/elc_fileselector_entry.c

@@ -260,9 +260,9 @@ _elm_fileselector_entry_elm_container_content_unset(Eo *obj, Elm_Fileselector_En
 {
    if (part && strcmp(part, "button icon"))
      {
-        Evas_Object *int_ret = NULL;
-        eo_do_super(obj, MY_CLASS, int_ret = elm_obj_container_content_unset(part));
-        return int_ret;
+        Evas_Object *ret = NULL;
+        eo_do_super(obj, MY_CLASS, ret = elm_obj_container_content_unset(part));
+        return ret;
      }
 
    return elm_layout_content_unset(sd->button, NULL);

legacy/elementary/src/lib/elm_entry.c

@@ -2783,9 +2783,9 @@ _elm_entry_elm_container_content_set(Eo *obj, Elm_Entry_Data *_pd EINA_UNUSED, c
 EOLIAN static Evas_Object*
 _elm_entry_elm_container_content_unset(Eo *obj, Elm_Entry_Data *_pd EINA_UNUSED, const char *part)
 {
-   Evas_Object *int_content = NULL;
-   eo_do_super(obj, MY_CLASS, int_content = elm_obj_container_content_unset(part));
-   if (!int_content) return NULL;
+   Evas_Object *ret = NULL;
+   eo_do_super(obj, MY_CLASS, ret = elm_obj_container_content_unset(part));
+   if (!ret) return NULL;
 
    /* too bad entry does not follow the pattern
     * "elm,state,{icon,end},hidden", we have to repeat ourselves */
@@ -2795,7 +2795,7 @@ _elm_entry_elm_container_content_unset(Eo *obj, Elm_Entry_Data *_pd EINA_UNUSED,
    if (!part || !strcmp(part, "end") || !strcmp(part, "elm.swallow.end"))
      elm_entry_end_visible_set(obj, EINA_FALSE);
 
-   return int_content;
+   return ret;
 }
 
 EOLIAN static Eina_Bool

legacy/elementary/src/lib/elm_hover.c

@@ -474,17 +474,17 @@ _elm_hover_elm_container_content_get(Eo *obj, Elm_Hover_Data *sd, const char *sw
 EOLIAN static Evas_Object*
 _elm_hover_elm_container_content_unset(Eo *obj, Elm_Hover_Data *sd, const char *swallow)
 {
-   Evas_Object *int_ret = NULL;
+   Evas_Object *ret = NULL;
 
    if (!swallow) return NULL;
 
    if (!strcmp(swallow, "smart"))
-      eo_do_super(obj, MY_CLASS, int_ret = elm_obj_container_content_unset
+      eo_do_super(obj, MY_CLASS, ret = elm_obj_container_content_unset
             (sd->smt_sub->swallow));
    else
-      eo_do_super(obj, MY_CLASS, int_ret = elm_obj_container_content_unset
+      eo_do_super(obj, MY_CLASS, ret = elm_obj_container_content_unset
             (swallow));
-   return int_ret;
+   return ret;
 }
 
 static void

legacy/elementary/src/lib/elm_panel.c

@@ -300,21 +300,21 @@ _elm_panel_elm_container_content_get(Eo *obj, Elm_Panel_Data *sd, const char *pa
 EOLIAN static Evas_Object*
 _elm_panel_elm_container_content_unset(Eo *obj, Elm_Panel_Data *sd, const char *part)
 {
-   Evas_Object *content = NULL;
+   Evas_Object *ret = NULL;
 
    if (part && strcmp(part, "default"))
      {
-        eo_do_super(obj, MY_CLASS, content = elm_obj_container_content_unset(part));
-        return content;
+        eo_do_super(obj, MY_CLASS, ret = elm_obj_container_content_unset(part));
+        return ret;
      }
 
    if (!sd->content) return NULL;
-   content = sd->content;
+   ret = sd->content;
 
    evas_object_box_remove_all(sd->bx, EINA_FALSE);
    sd->content = NULL;
 
-   return content;
+   return ret;
 }
 
 EOLIAN static void

legacy/elementary/src/lib/elm_widget.c

@@ -1431,10 +1431,10 @@ _elm_widget_top_get(Eo *obj, Elm_Widget_Smart_Data *sd)
 {
    if (sd->parent_obj)
      {
-        Evas_Object *int_ret = NULL;
+        Evas_Object *ret = NULL;
         if (!eo_isa(sd->parent_obj, ELM_OBJ_WIDGET_CLASS)) return NULL;
-        eo_do((Eo *) sd->parent_obj, int_ret = elm_obj_widget_top_get());
-        return int_ret;
+        eo_do((Eo *) sd->parent_obj, ret = elm_obj_widget_top_get());
+        return ret;
      }
    return (Evas_Object *)obj;
 }