ScriptConsole: Move from Debugger to QmlJSTools

The console is now a part of qmljstools plugin. The console
appears as an output pane. A dummy QScriptEngine evaluates
expressions when a declarative debug session is not in
progress. During a debug session, the expressions are
evaluated by the debug services.

Task-Number: QTCREATORBUG-7402

Change-Id: Ic2eeac44fb335c706be03b89f8672b0356efe984
Reviewed-by: Christiaan Janssen <christiaan.janssen@digia.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/qml/qmlengine.h

@@ -53,7 +53,6 @@ namespace Debugger {
 namespace Internal {
 
 class QmlAdapter;
-class QtMessageLogItem;
 
 class QmlEngine : public DebuggerEngine
 {
@@ -181,9 +180,6 @@ private:
 
     void updateEditor(Core::IEditor *editor, const QTextDocument *document);
     bool canEvaluateScript(const QString &script);
-    QtMessageLogItem *constructLogItemTree(QtMessageLogItem *parent,
-                                           const QVariant &result,
-                                           const QString &key = QString());
     bool adjustBreakpointLineAndColumn(const QString &filePath, quint32 *line,
                                        quint32 *column, bool *valid);