Use dartdoc 8.3.0 for packages that depend on macros.

[isoos]

This is a temporary override to get package:analyzer documentation generated.

[sigurdm]

Could you do something along the lines of dart pub deps --json | jq '.packages.[]|select(.name=="_macros")' to also catch transitive dependency on package _macros ?

[isoos]

Could you do something along the lines of dart pub deps --json | jq '.packages.[]|select(.name=="_macros")' to also catch transitive dependency on package _macros?

At the moment I would keep this simple, mostly because if the package has a transient macros dependency, we will use the stable SDK and it will fail regardless. And we can't use the dart pub deps with the current SDK detection mechanism yet, as it wouldn't resolve the dependencies on the stable SDK.

[isoos]

I think this + #8339 is a good baseline, pushing these to staging right now. We still need to implement the new redirect from -library.html to the directory-root, and also update some test assumptions, and we seem to provide a reasonable documentation page for these packages.