CppTools: Move CppHoverHandler to CppTools

This is in preparation for clang code model to provide its own hover
handler.

Change-Id: Ifbdd96f427989bd5d1fbc4badb9c38108485c2f2
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>

src/plugins/clangcodemodel/clangmodelmanagersupport.cpp

@@ -33,6 +33,7 @@
 
 #include <coreplugin/editormanager/editormanager.h>
 #include <cpptools/cppfollowsymbolundercursor.h>
+#include <cpptools/cpphoverhandler.h>
 #include <cpptools/cppmodelmanager.h>
 #include <cpptools/editordocumenthandle.h>
 #include <cpptools/projectinfo.h>
@@ -111,6 +112,11 @@ CppTools::CppCompletionAssistProvider *ModelManagerSupportClang::completionAssis
     return &m_completionAssistProvider;
 }
 
+TextEditor::BaseHoverHandler *ModelManagerSupportClang::createHoverHandler()
+{
+    return new CppTools::CppHoverHandler;
+}
+
 CppTools::FollowSymbolInterface &ModelManagerSupportClang::followSymbolInterface()
 {
     return *m_followSymbol;

src/plugins/clangcodemodel/clangmodelmanagersupport.h

@@ -61,6 +61,7 @@ public:
     ~ModelManagerSupportClang();
 
     CppTools::CppCompletionAssistProvider *completionAssistProvider() override;
+    TextEditor::BaseHoverHandler *createHoverHandler() override;
     CppTools::BaseEditorDocumentProcessor *createEditorDocumentProcessor(
                 TextEditor::TextDocument *baseTextDocument) override;
     CppTools::FollowSymbolInterface &followSymbolInterface() override;