Improve changesets for tree errors

[CraigMacomber]

Description

Improve/add error related changesets for tree.

Reviewer Guidance

The review process is outlined on this wiki page.

[alexvy86]

Just a couple of typos. I know adding new changeset files at this point has some caveats, like they don't end up linked to the right commit. Did we have to do anything about that @tylerbutler ?

[tylerbutler]

Just a couple of typos. I know adding new changeset files at this point has some caveats, like they don't end up linked to the right commit. Did we have to do anything about that @tylerbutler ?

The entries in the per-package changelogs will link to this PR/commit, which isn't ideal but it's the best we can do atm. If there is a better PR to link to, my preferred pattern is to include a sentence at the end of the changeset like, "This change was originally made in PR 1234."

[CraigMacomber]

The entries in the per-package changelogs will link to this PR/commit, which isn't ideal but it's the best we can do atm. If there is a better PR to link to, my preferred pattern is to include a sentence at the end of the changeset like, "This change was originally made in PR 1234."

Done.