loplugin:unusedenumvalues in sw

Change-Id: Ia5faa65cd7824183cead2634edab96b5d23a6c02
Reviewed-on: https://gerrit.libreoffice.org/28072
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>

compilerplugins/clang/unusedenumvalues.cxx

@@ -78,6 +78,7 @@ public:
     }
 
     bool shouldVisitTemplateInstantiations () const { return true; }
+    bool shouldVisitImplicitCode() const { return true; }
 
     bool VisitEnumDecl( const EnumDecl* );
     bool VisitDeclRefExpr( const DeclRefExpr* );