Add RightPaneWidget::widget()

Not used here, but can be interesting for 3rdparties, makes the API
symmetric and doesn't hurt.

Change-Id: Ia497dd485ad6a325fe27955ad440d466b7d2c803
Fixes: QTCREATORBUG-22174
Reviewed-by: Shujaat Ali Khan <shujaat.eager@gmail.com>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/coreplugin/rightpane.cpp

@@ -153,6 +153,11 @@ void RightPaneWidget::setWidget(QWidget *widget)
     }
 }
 
+QWidget *RightPaneWidget::widget() const
+{
+    return m_widget;
+}
+
 int RightPaneWidget::storedWidth()
 {
     return m_width;

src/plugins/coreplugin/rightpane.h

@@ -72,6 +72,7 @@ public:
     static RightPaneWidget *instance();
 
     void setWidget(QWidget *widget);
+    QWidget *widget() const;
 
     int storedWidth();