Parsing of incomplete html doesn't catch a closing tag without an opening.

[hahn-kev]

I'm currently using the language service for doing some validation of xml, specifically for invalid xml like the following:

• <badTag>event-1 missing an end tag
• <badTag>event-1</badTag end tag missing a closing '>'
• <badTag/ self closing tag missing a closing '>'

these all work just fine right now, I can use LanguageService.parseHTMLDocument and it'll return a document where those nodes have been parsed and I can then check them to see if they're missing something.

However one case doesn't get returned as a node from the parse function and that's this

• bagTag> content </badTag> the first tag is missing it's opening '<', but also there's a closing tag without an opening tag.

is this something that could be fixed? is there another way I should go about validating this html with the language service? I'm using the parsed document for doing a lot of other analysis of the xml so I don't want to just use the scanner as that would be a fair bit of duplicate work, but I'm not sure how else I would go about catching this corner case.