- This moves ParserContext closer to operating on a RazorSourceDocument and exposes it at the parsing layer.
- Was not able to replace the `ITextDocument` property on `ParserContext` due to its current wiring. Our tokenizers rely on a single reader that iterates over the document and take turns tokenizing characters from that reader. The reader that the tokenizers pull from is also highly coupled with the parsers implementations; they end up moving the readers pointer frequently.
Created internal + public versions of
- BlockKind
- SpanKind
- AcceptedCharacters
That way these types are only exposed through the VS apis and not
through the runtime API surface.
Also deleted RazorEditorParser. Yep. It's going to take significant work
to just port it to the language services assembly. Let's reevaluate this
when we get closer to the next foundational update.