`no-missing-references` cannot reference svg title and desc

no-missing-references cannot reference svg <title> and <desc> elements

Reduced test-case

<input type="text" aria-labelledby="foo">
<svg>
  <title id="foo">lorem ipsum</title>
</svg>

Expected result

No error, the referenced ID exists in the document.

Actual result

SVG's are not parsed thus the reference is broken and an error is reported.