Debugger: Show QML Script Console only for QML debugging

Change-Id: Ibb0f03c77a84ee8682d44944e8a24fac54cb60fe
Reviewed-on: http://codereview.qt-project.org/5329
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

src/plugins/debugger/qml/qmlcppengine.cpp

@@ -699,6 +699,11 @@ DebuggerEngine *QmlCppEngine::cppEngine() const
     return d->m_cppEngine;
 }
 
+DebuggerEngine *QmlCppEngine::qmlEngine() const
+{
+    return d->m_qmlEngine;
+}
+
 } // namespace Internal
 } // namespace Debugger