Clang: add globalFollowSymbol to RefactoringEngine

Allows to follow outside of current TU.

Change-Id: Ieea2fd72bfdf6d60a988b40efcf2f41c5a71d045
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/cpptools/cpprefactoringengine.cpp

@@ -28,6 +28,7 @@
 #include "cpprefactoringengine.h"
 #include "cppsemanticinfo.h"
 #include "cpptoolsreuse.h"
+#include "cppfollowsymbolundercursor.h"
 
 #include <texteditor/texteditor.h>
 
@@ -99,4 +100,16 @@ void CppRefactoringEngine::findUsages(const CursorInEditor &data,
     }
 }
 
+CppRefactoringEngine::Link CppRefactoringEngine::globalFollowSymbol(
+        const CursorInEditor &data,
+        const CPlusPlus::Snapshot &snapshot,
+        const CPlusPlus::Document::Ptr &documentFromSemanticInfo,
+        SymbolFinder *symbolFinder,
+        bool inNextSplit) const
+{
+    FollowSymbolUnderCursor followSymbol;
+    return followSymbol.findLink(data, true, snapshot, documentFromSemanticInfo,
+                                 symbolFinder, inNextSplit);
+}
+
 } // namespace CppEditor