Summary: Ref T988. Show "Extends:" as linked tags. Fix the style of "This <top-level thing, like a class or function>" is not documented so it's the same as "This method is not documented.".
Test Plan:
Tags thing before:
{F57557}
Tags thing after:
{F57558}
Undoc before:
{F57559}
Undoc after:
{F57560}
Reviewers: chad
Reviewed By: chad
CC: aran
Maniphest Tasks: T988
Differential Revision: https://secure.phabricator.com/D6910
0c95c6c4b8