Clang: Introduce switching/adding of warning configurations

A warning configuration is a list of command line (warning) options for
libclang. Three non-editable built-in configurations are provided by
default. The user can copy a configuration to customize it.

This is still a global setting and it changes take effect after
re-opening a document. Both issues will be addressed in follow-up
changes.

Change-Id: I86667d7dc39ad31b88666454220e6da563797740
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>

src/plugins/cpptools/clangdiagnosticconfig.h

@@ -0,0 +1,63 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 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 "cpptools_global.h"
+
+#include <coreplugin/id.h>
+
+#include <QStringList>
+#include <QVector>
+
+namespace CppTools {
+
+class CPPTOOLS_EXPORT ClangDiagnosticConfig
+{
+public:
+    Core::Id id() const;
+    void setId(const Core::Id &id);
+
+    QString displayName() const;
+    void setDisplayName(const QString &displayName);
+
+    QStringList commandLineOptions() const;
+    void setCommandLineOptions(const QStringList &commandLineOptions);
+
+    bool isReadOnly() const;
+    void setIsReadOnly(bool isReadOnly);
+
+    bool operator==(const ClangDiagnosticConfig &other) const;
+
+private:
+    Core::Id m_id;
+    QString m_displayName;
+    QStringList m_commandLineOptions;
+    bool m_isReadOnly = false;
+};
+
+using ClangDiagnosticConfigs = QVector<ClangDiagnosticConfig>;
+
+} // namespace CppTools