QmlJSInspector: Enable/Disable based on engine state

Change-Id: I078d12fb16fe61908e5b90ebf819c9fd9e8faae0
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

src/plugins/debugger/qml/qmlcppengine.cpp

@@ -130,6 +130,7 @@ QmlCppEngine::~QmlCppEngine()
 bool QmlCppEngine::setToolTipExpression(const QPoint & mousePos,
         TextEditor::ITextEditor *editor, const DebuggerToolTipContext &ctx)
 {
+    //FIXIT:: This is broken!!
     return d->m_activeEngine->setToolTipExpression(mousePos, editor, ctx);
 }