[Theme] Twig loader quick fix to avoid profiler exception

[Zales0123]

Q	A
Bug fix?	yes
New feature?	yes
BC breaks?	yes
Related tickets	fixes #5886
License	MIT

[pjedrzejewski]

Nice, thanks Mateusz! :)

[tchapi]

This breaks templating ... and Twig_ExistsLoaderInterface is deprecated since 1.12.

Apart from the deprecation, wouldn't something like that be a bit better for now ? At least not BC breaking things :

try {
    return stat($this->findTemplate($name)) !== false;
} catch (\Exception $exception) {
    return false;
}

[ahilles107]

👍 for @tchapi chapi solution. We really need to check if this file exists there. It breaks default fallback for error.html.twig template in error pages.