Reinvent deprecated qSort as Utils::sort

Change-Id: I4f6011cc2b6127037249aabc2426a88ad7108ebf
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/git/stashdialog.cpp

@@ -33,6 +33,7 @@
 #include "gitutils.h"
 #include "ui_stashdialog.h"
 
+#include <utils/algorithm.h>
 #include <utils/qtcassert.h>
 
 #include <QDebug>
@@ -367,7 +368,7 @@ QList<int> StashDialog::selectedRows() const
         if (index.isValid())
             rc.push_back(index.row());
     }
-    qSort(rc);
+    Utils::sort(rc);
     return rc;
 }