C++: Trigger function signature change via quick fix.

This way we don't need to override Return and Escape.

Change-Id: I1548118c06ee7338ba3dd9d84b82b9314ab16782
Reviewed-on: http://codereview.qt.nokia.com/4183
Reviewed-by: Leandro T. C. Melo <leandro.melo@nokia.com>

src/plugins/cppeditor/cppquickfixes.cpp

@@ -37,6 +37,7 @@
 #include "cppinsertqtpropertymembers.h"
 #include "cppquickfixassistant.h"
 #include "cppcompleteswitch.h"
+#include "cppfunctiondecldeflink.h"
 
 #include <ASTVisitor.h>
 #include <AST.h>
@@ -1693,4 +1694,5 @@ void registerQuickFixes(ExtensionSystem::IPlugin *plugIn)
     plugIn->addAutoReleasedObject(new InsertQtPropertyMembers);
     plugIn->addAutoReleasedObject(new DeclFromDef);
     plugIn->addAutoReleasedObject(new DefFromDecl);
+    plugIn->addAutoReleasedObject(new ApplyDeclDefLinkChanges);
 }