CppEditor: Test also link targets for override list

Affects test_FollowSymbolUnderCursor_virtualFunctionCall_* functions.

Change-Id: I963ef81183792f85243d679dee69a41db00bed07
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/plugins/cppeditor/cppvirtualfunctionproposalitem.h

@@ -41,6 +41,7 @@ public:
     VirtualFunctionProposalItem(const TextEditor::BaseTextEditorWidget::Link &link,
                                 bool openInSplit = true);
     void apply(TextEditor::BaseTextEditor * /* editor */, int /* basePosition */) const;
+    TextEditor::BaseTextEditorWidget::Link link() const { return m_link; } // Exposed for tests
 
 private:
     TextEditor::BaseTextEditorWidget::Link m_link;