Remove ClangRefactoring and ClangPchManager

This removes the plugins and tools, and removes all the tests that would
fail to build because of that.

Fixes: QTCREATORBUG-25659
Change-Id: I8adb5d503fc8eea313bcaada421f309dbbfa8c26
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

src/plugins/cpptools/CMakeLists.txt

@@ -1,6 +1,6 @@
 add_qtc_plugin(CppTools
   DEPENDS Qt5::Network Qt5::Xml
-  PUBLIC_DEPENDS CPlusPlus Qt5::Widgets
+  PUBLIC_DEPENDS CPlusPlus ClangSupport Qt5::Widgets
   PLUGIN_DEPENDS Core ProjectExplorer TextEditor
   PLUGIN_TEST_DEPENDS CppEditor QmakeProjectManager
   SOURCES

src/plugins/cpptools/cpprefactoringengine.cpp

@@ -30,6 +30,7 @@
 #include "cpptoolsreuse.h"
 #include "cppfollowsymbolundercursor.h"
 
+#include <clangsupport/sourcelocationscontainer.h>
 #include <texteditor/texteditor.h>
 
 #include <utils/qtcassert.h>

src/plugins/cpptools/cpptools.qbs

@@ -8,6 +8,7 @@ Project {
         Depends { name: "Qt.widgets" }
         Depends { name: "Qt.testlib"; condition: project.withAutotests }
         Depends { name: "CPlusPlus" }
+        Depends { name: "ClangSupport" }
         Depends { name: "Utils" }
 
         Depends { name: "Core" }

src/plugins/cpptools/cpptools_dependencies.pri

@@ -1,6 +1,7 @@
 QTC_PLUGIN_NAME = CppTools
 QTC_LIB_DEPENDS += \
     cplusplus \
+    clangsupport \
     extensionsystem \
     utils
 QTC_PLUGIN_DEPENDS += \

src/plugins/cpptools/refactoringengineinterface.h

@@ -32,15 +32,16 @@
 #include <utils/link.h>
 #include <utils/fileutils.h>
 
-#include <clangsupport/sourcelocationscontainer.h>
-#include <clangsupport/refactoringclientinterface.h>
-
 #include <cplusplus/CppDocument.h>
 
 namespace TextEditor {
 class TextEditorWidget;
 } // namespace TextEditor
 
+namespace ClangBackEnd {
+class SourceLocationsContainer;
+}
+
 namespace CppTools {
 
 class ProjectPart;
@@ -56,7 +57,9 @@ enum class CallType
 class CPPTOOLS_EXPORT RefactoringEngineInterface
 {
 public:
-    using RenameCallback = ClangBackEnd::RefactoringClientInterface::RenameCallback;
+    using RenameCallback = std::function<void(const QString &,
+                                              const ClangBackEnd::SourceLocationsContainer &,
+                                              int)>;
     using Link = Utils::Link;
 
     virtual ~RefactoringEngineInterface() = default;