Clang: use local renaming based on ClangCodeModel

Provide refactoring engine for ClangCodeModel and
implement missing methods.

Change-Id: If5c913e0c5a7941cd2ced54d0fcfa4d625eadc93
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/clangcodemodel/clangmodelmanagersupport.cpp

@@ -29,6 +29,7 @@
 #include "clangeditordocumentprocessor.h"
 #include "clangutils.h"
 #include "clangfollowsymbol.h"
+#include "clangrefactoringengine.h"
 
 #include <coreplugin/editormanager/editormanager.h>
 #include <cpptools/cppfollowsymbolundercursor.h>
@@ -67,6 +68,7 @@ static CppTools::CppModelManager *cppModelManager()
 
 ModelManagerSupportClang::ModelManagerSupportClang()
     : m_completionAssistProvider(m_communicator)
+    , m_refactoringEngine(new RefactoringEngine)
 {
     QTC_CHECK(!m_instance);
     m_instance = this;
@@ -114,6 +116,11 @@ CppTools::FollowSymbolInterface &ModelManagerSupportClang::followSymbolInterface
     return *m_followSymbol;
 }
 
+CppTools::RefactoringEngineInterface &ModelManagerSupportClang::refactoringEngineInterface()
+{
+    return *m_refactoringEngine;
+}
+
 CppTools::BaseEditorDocumentProcessor *ModelManagerSupportClang::editorDocumentProcessor(
         TextEditor::TextDocument *baseTextDocument)
 {