ClangCodeModel: Move "find references" into its own class

Change-Id: If4dc9f7cb56b7f2e03e3d4622e616fb8486ddc92
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/clangcodemodel/clangdfindreferences.h

@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2022 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <coreplugin/find/searchresultitem.h>
+#include <utils/optional.h>
+
+#include <QObject>
+
+QT_BEGIN_NAMESPACE
+class QTextCursor;
+QT_END_NAMESPACE
+
+namespace TextEditor { class TextDocument; }
+
+namespace ClangCodeModel::Internal {
+class ClangdClient;
+
+class ClangdFindReferences : public QObject
+{
+    Q_OBJECT
+public:
+    explicit ClangdFindReferences(ClangdClient *client, TextEditor::TextDocument *document,
+                                  const QTextCursor &cursor, const QString &searchTerm,
+                                  const Utils::optional<QString> &replacement, bool categorize);
+    ~ClangdFindReferences();
+
+signals:
+    void foundReferences(const QList<Core::SearchResultItem> &items);
+    void done();
+
+private:
+    class Private;
+    Private * const d;
+};
+
+} // namespace ClangCodeModel::Internal