Fix conflicting Twig references from PhpStorm itself

[Haehnchen]

The core Twig provides partial navigation via references extension, is conflicting / ignoring navigation from this plugin. So for example if there are usages the navigation is handled by PhpStorm itself.

foobarBad is given navigation by this plugin, but is overwritting to jump to the if statement.

    {% if x.foobarBad != '' %}
            {{ x.foobarBad }}
            {{ x.foobarGood }}
    {% endif %}