- Part of caching length required the `Span`'s `ReplaceWith` method to propagate its changes to its parent so that it can propogate the change to invalidate all parent length caches.
- Added Span and Block tests to validate the interaction of caching.
#1927
- Prior to this when the partial parser would successfully parse a change we'd mutate the returned syntax tree so any data inquired about the tree would then be wrong. We now isolate mutations to copied versions of the syntax tree.
- Added copy tests to ensure that we were appropriately copying all the various syntax node types.
#1793
- Added `DirectiveUsage` to enable extensible directive authors to indicate how their directives should be used. Currently support `Unrestricted` (how section directives have always worked) and a file scoped singly occurring directive.
- Added directive parsing tests.
- Removed no longer used `BlockKindInternal` items.
#1376
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.