Todo: non-alien dir separators in To-Do entries list

Use Utils::FileName instead of QString in TodoItem

Change-Id: I3c35599f972f0c23087f86ef10c9363a1577ce35
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/plugins/todo/todoitemsmodel.cpp

@@ -100,7 +100,7 @@ QVariant TodoItemsModel::data(const QModelIndex &index, int role) const
 
         case Constants::OUTPUT_COLUMN_FILE:
             if (role == Qt::DisplayRole)
-                return item.file;
+                return item.file.toUserOutput();
             break;
 
         case Constants::OUTPUT_COLUMN_LINE: