Clang: Rename directory ipcsource to source

Now it's in accordance with clangrefactoringbackend/source and
clangpchmanagerbackend/source.

Change-Id: I939cfc72cffb8fcde0649f125e6efb6670d1cbc3
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/tools/clangbackend/source/unsavedfile.h

@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** 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 "utf8string.h"
+
+namespace ClangBackEnd {
+
+using uint = unsigned int;
+
+class UnsavedFile
+{
+public:
+    friend std::ostream &operator<<(std::ostream &os, const UnsavedFile &unsavedFile);
+
+    UnsavedFile();
+    UnsavedFile(const Utf8String &filePath, const Utf8String &fileContent);
+
+    Utf8String filePath() const;
+    Utf8String nativeFilePath() const;
+    Utf8String fileContent() const;
+
+    // 1-based line and column
+    uint toUtf8Position(uint line, uint column, bool *ok) const;
+    bool hasCharacterAt(uint line, uint column, char character) const;
+
+    // 0-based position
+    bool hasCharacterAt(uint position, char character) const;
+    bool replaceAt(uint position, uint length, const Utf8String &replacement);
+
+private:
+    Utf8String m_filePath;
+    Utf8String m_nativeFilePath;
+    Utf8String m_fileContent;
+};
+
+} // namespace ClangBackEnd