Update internal-link-present-evaluate to work with virtualNodes

[straker]

The internal-link-present-evaluate function should work with virtualNode rather than actualNode. Update the regexp test to use virtual-node methods to get the attribute.

You'll also need to update the tests to pass the virtual node rather than just the node.

See non-empty-if-presenet-evaluate and its test file as an example.

[anuk79]

@straker May I pick this one if no one else is working on it?

[straker]

Sure thing, all yours.

[straker]

@anuk79 any update on working on this? If not I'll probably pick it up.

[anuk79]

Hi @straker sorry I couldn't pick it up. You can reassign

[dan-tripp]

Hello. I'm new here. Figured I'd try this 'good first issue'. I submitted a PR for it. Is it useful?