Expand Analyzer constraints to allow 8.x

[natebosch]

Prepare to publish with no other package changes.

[github-actions]

PR Health

Changelog Entry ✔️

Package	Changed Files

Changes to files need to be accounted for in their respective changelogs.

[scheglov]

Why not doing it now?
When we will start removing old APIs from the analyzer, this will cause issues.
And than we will have to do one more iteration to clean this up.

[natebosch]

Sure we can fix this now. Do you know the correct min version to include the new name field?

[scheglov]

8.0.0

• Deprecate NamedType.name2, use name instead.

[github-actions]

Package publishing

Package	Version	Status	Publish tag (post-merge)
package:checks	0.3.1	already published at pub.dev
package:fake_async	1.3.3	already published at pub.dev
package:matcher	0.12.18-wip	WIP (no publish necessary)
package:test	1.26.3	ready to publish	test-v1.26.3
package:test_api	0.7.7	ready to publish	test_api-v0.7.7
package:test_core	0.6.12	ready to publish	test_core-v0.6.12
package:test_descriptor	2.0.2	already published at pub.dev
package:test_process	2.1.1	already published at pub.dev

Documentation at https://github.com/dart-lang/ecosystem/wiki/Publishing-automation.