Clang: Add diagnostics

Diagnostics are now moved to the clang backend process. Fixits are
supported too.

Change-Id: I20faacf466bbf78dec479220c3d7b336a47bc453
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

src/libs/clangbackendipc/sourcelocationcontainer.cpp

@@ -0,0 +1,111 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://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 http://www.qt.io/terms-conditions.  For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "sourcelocationcontainer.h"
+
+#include <QDataStream>
+#include <QDebug>
+
+namespace ClangBackEnd {
+
+SourceLocationContainer::SourceLocationContainer(const Utf8String &filePath,
+                                                 uint line,
+                                                 uint offset)
+    : filePath_(filePath),
+      line_(line),
+      offset_(offset)
+{
+}
+
+const Utf8String &SourceLocationContainer::filePath() const
+{
+    return filePath_;
+}
+
+uint SourceLocationContainer::line() const
+{
+    return line_;
+}
+
+
+uint SourceLocationContainer::offset() const
+{
+    return offset_;
+}
+
+QDataStream &operator<<(QDataStream &out, const SourceLocationContainer &container)
+{
+    out << container.filePath_;
+    out << container.line_;
+    out << container.offset_;
+
+    return out;
+}
+
+QDataStream &operator>>(QDataStream &in, SourceLocationContainer &container)
+{
+    in >> container.filePath_;
+    in >> container.line_;
+    in >> container.offset_;
+
+    return in;
+}
+
+bool operator==(const SourceLocationContainer &first, const SourceLocationContainer &second)
+{
+    return first.offset_ == second.offset_ && first.filePath_ == second.filePath_;
+}
+
+bool operator<(const SourceLocationContainer &first, const SourceLocationContainer &second)
+{
+    return first.filePath_ < second.filePath_
+        || (first.filePath_ == second.filePath_ && first.offset_ < second.offset_);
+}
+
+QDebug operator<<(QDebug debug, const SourceLocationContainer &container)
+{
+    debug.nospace() << "SourceLocationContainer("
+                    << container.filePath() << ", "
+                    << container.line() << ", "
+                    << container.offset()
+                    << ")";
+    return debug;
+}
+
+void PrintTo(const SourceLocationContainer &container, ::std::ostream* os)
+{
+    *os << "["
+        << container.filePath().constData() << ", "
+        << container.line() << ", "
+        << container.offset()
+        << "]";
+}
+} // namespace ClangBackEnd
+