Initialize m_priority in ITextMark

Change-Id: I8d776732729a7c67ae4fe5405f65ae5de7284845
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/texteditor/itexteditor.h

@@ -59,7 +59,7 @@ class TEXTEDITOR_EXPORT ITextMark : public QObject
 {
     Q_OBJECT
 public:
-    ITextMark(QObject *parent = 0) : QObject(parent) {}
+    ITextMark(QObject *parent = 0) : QObject(parent), m_priority(NormalPriority) {}
 
     // determine order on markers on the same line.
     enum Priority