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/todoitemsscanner.cpp

@@ -54,7 +54,7 @@ void TodoItemsScanner::processCommentLine(const QString &fileName, const QString
 
     for (int i = 0; i < newItemList.count(); ++i) {
         newItemList[i].line = lineNumber;
-        newItemList[i].file = fileName;
+        newItemList[i].file = Utils::FileName::fromString(fileName);
     }
 
     outItemList << newItemList;