Debugger: give the qmlToolBar a parent.

Showed up in valgrind as a leak, when QML debugging was not used.

Change-Id: I8e378795727f0e2f297086ae73dab99b6a28de32
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/debugger/debuggerplugin.cpp

@@ -3259,7 +3259,7 @@ void DebuggerPluginPrivate::extensionsInitialized()
 
     m_mainWindow->setToolBar(CppLanguage, toolbarContainer);
 
-    QWidget *qmlToolbar = new QWidget;
+    QWidget *qmlToolbar = new QWidget(m_mainWindow);
     hbox = new QHBoxLayout(qmlToolbar);
     hbox->setMargin(0);
     hbox->setSpacing(0);