Allow users to suppress diagnostics.

This patch deals with what is likely the most common use case:
Filtering specific messages at a particular location. The current
granularity is essentially per-file (and per-function, where possible),
which seems more useful than taking line numbers into
account, as that would not be robust with regards to code changes elsewhere
in the file. We can fine-tune this if the need arises.

Change-Id: I4e9b2671fa199339cc3b995953d072b840cd3205
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingsmanager.h

@@ -0,0 +1,47 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd
+** All rights reserved.
+** For any questions to The Qt Company, please use contact form at http://www.qt.io/contact-us
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://www.qt.io/contact-us
+**
+****************************************************************************/
+#ifndef CLANGSTATICANALYZERPROJECTSETTINGSMANAGER_H
+#define CLANGSTATICANALYZERPROJECTSETTINGSMANAGER_H
+
+namespace ProjectExplorer { class Project; }
+
+#include <QHash>
+#include <QSharedPointer>
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+class ProjectSettings;
+
+class ProjectSettingsManager
+{
+public:
+    ProjectSettingsManager();
+
+    static ProjectSettings *getSettings(ProjectExplorer::Project *project);
+
+private:
+    static void handleProjectToBeRemoved(ProjectExplorer::Project *project);
+
+    typedef QHash<ProjectExplorer::Project *, QSharedPointer<ProjectSettings>> SettingsMap;
+    static SettingsMap m_settings;
+};
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer
+
+#endif // Include guard.