feat!: drop mirrors, etc

[lishaduck]

Fixes #91.

Depends on dart-lang/source_gen#786.

dart analyze currently passes both flutter pub upgrade/downgrade.

[lishaduck]

So this works, but is kinda pointless because the test_api Flutter pins is outdated already, so pub will never resolve test to an analyzer:8-compatible version...

[simolus3]

So this works, but is kinda pointless because the test_api Flutter pins is outdated already, so pub will never resolve test to an analyzer:8-compatible version...

FWIW I had some success adding a dependency override for test_api to test with the latest analyzer and source_gen packages. Since tests are a dev dependency, that may be fine here as well?

[lishaduck]

So this works, but is kinda pointless because the test_api Flutter pins is outdated already, so pub will never resolve test to an analyzer:8-compatible version...

FWIW I had some success adding a dependency override for test_api to test with the latest analyzer and source_gen packages. Since tests are a dev dependency, that may be fine here as well?

Well really it's an issue everywhere. This actually has a production dependency on test, because this is a package for tests.

[lishaduck]

Superseded by #93.