Inspector: Update Editor on object selection

When an object is selected in the Inspector, the
Editor is updated to show the relevant code.

Task-number: QTCREATORBUG-8246

Change-Id: I4f7fbcccdeb22849682fa72c63e87a78f48d185b
Reviewed-by: hjk <qthjk@ovi.com>
Reviewed-by: Christiaan Janssen <christiaan.janssen@digia.com>

src/plugins/debugger/watchwindow.h

@@ -51,6 +51,7 @@ public:
     explicit WatchTreeView(Type type, QWidget *parent = 0);
     Type type() const { return m_type; }
     void setModel(QAbstractItemModel *model);
+    void rowClicked(const QModelIndex &index);
     void reset();
 
 public slots: