Meson: Convert to Tr::tr

Change-Id: I37e8a8c559464f7d55e17a5ca08e8d8d9760a4d6
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/mesonprojectmanager/arrayoptionlineedit.h

@@ -13,7 +13,6 @@ namespace Internal {
 
 class RegexHighlighter : public QSyntaxHighlighter
 {
-    Q_OBJECT
     const QRegularExpression m_regex{R"('([^']+)'+|([^', ]+)[, ]*)"};
     QTextCharFormat m_format;