Bug #1716946 added a Hang annotation.

Hang:
  description: >
    Set if the crash was the result of a hang, with a value which describes the
    type of hang (e.g. "ui" or "shutdown").
  type: string
  ping: true

Data review: https://bugzilla.mozilla.org/show_bug.cgi?id=1716946#c25

We want to add support for the Hang annotation:

• make it public
• make it searchable in Super Search
• make it aggregatable in Super Search

Grabbing this to do today. It'll unblock PR 6428.

Gabriele: We have a report_type field now with values "crash" and "hang". If there's a Hang annotation, is that another indicator that the report_type should be "hang"?

Yes! Long term I'd like to change all our hangs to have that annotation so that we can drop the complex logic in Socorro signature generation to figure out if something is a hang (like looking on the stack for the shutdown terminator, etc...).

willkg merged PR #6458: "bug 1850522: add Hang to schemas, processed crash, and super search" in da940c6.