The new version of `dgeni-packages/typescript` no longer strips
out "namespaces" from types, which was part of the problem of
not autolinking correctly to `HttpEventType.Response`.
Another part of the problem was that we did not include `.`
characters when matching potential code blocks for auto-linking,
which precluded properties of enums from being linked.
Finally, members we not being given a `path` property, which is
needed to effectively autolink to them. This is now set in
the `simplifyMemberAnchors` processor.
Closes#21375
PR Close#22494
Pete Bacon Darwin