Debugger: modernize ConsoleItem editor connect

Change-Id: Iac2fb696779e02c2fe5296c4f9981c20d21bb3a8
Reviewed-by: hjk <hjk@theqtcompany.com>

src/plugins/debugger/console/consoleitemdelegate.cpp

@@ -318,8 +318,11 @@ QWidget *ConsoleItemDelegate::createEditor(QWidget *parent,
                                         "background-origin: margin;"
                                         "background-repeat: none;"
                                         "}"));
-    connect(editor, &ConsoleEdit::editingFinished,
+    connect(editor, &ConsoleEdit::editingFinished, this, [this, editor] {
-            this, &ConsoleItemDelegate::commitAndCloseEditor);
+        auto delegate = const_cast<ConsoleItemDelegate*>(this);
+        emit delegate->commitData(editor);
+        emit delegate->closeEditor(editor);
+    });
     return editor;
 }
 
@@ -353,13 +356,6 @@ void ConsoleItemDelegate::currentChanged(const QModelIndex &current,
     emit sizeHintChanged(previous);
 }
 
-void ConsoleItemDelegate::commitAndCloseEditor()
-{
-    ConsoleEdit *editor = qobject_cast<ConsoleEdit *>(sender());
-    emit commitData(editor);
-    emit closeEditor(editor);
-}
-
 qreal ConsoleItemDelegate::layoutText(QTextLayout &tl, int width,
                                          bool *showFileLineInfo) const
 {

src/plugins/debugger/console/consoleitemdelegate.h

@@ -61,9 +61,6 @@ protected:
     void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option,
                               const QModelIndex &index) const;
 
-private slots:
-    void commitAndCloseEditor();
-
 private:
     qreal layoutText(QTextLayout &tl, int width, bool *success = 0) const;