Meson: Fix compile

Amends 77d7bb5014.

Change-Id: I86bae4f0d0df79f1941e5ab6b4ef097d72a505ed
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/mesonprojectmanager/settings/tools/kitaspect/toolkitaspectwidget.cpp

@@ -60,7 +60,7 @@ ToolKitAspectWidget::ToolKitAspectWidget(ProjectExplorer::Kit *kit,
             this,
             &ToolKitAspectWidget::removeTool);
     connect(m_toolsComboBox,
-            qOverload<int>(&QComboBox::currentIndexChanged),
+            QOverload<int>::of(&QComboBox::currentIndexChanged),
             this,
             &ToolKitAspectWidget::setCurrentToolIndex);
 }