generate-code command generates code with errors

[kenzieschmoll]

This doesn't appear to be happening on the CI, because tests pass there. But locally, I see these improperly generated mocks each time I run dt generate-code.

CC @DanTup because I think you've run into this before?
CC @srawlins in case you have any ideas about our generate mocks setup.

Repro steps:

1. Run dt update-flutter-sdk --update-on-path to ensure that the tool/flutter-sdk directory and your local flutter sdk are on the flutter version that DevTools is pinned to use.
2. Run dt generate-code to generate mocks. Optionally, you can also try dt generate-code --upgrade to upgrade pub dependencies before generating code. Both resulted in generated code with errors for me.

[DanTup]

I've seen this a few times before and it's fairly sporadic. I thought it was just me so I didn't dig into it too much (honestly, I didn't know where to start debugging). Sometimes I just manually fix the file up (changing dynamic to the type it wants), but if it's not just me it would be nice to track down.

I just pulled latest (7a9b23f) and ran dt update-flutter-sdk then dt generate-code and did not have this issue. So I tried with --upgrade but it still didn't occur.

It's weird because when it happens, it's only for a couple of requests, and as far as I can tell the missing types (which have been replaced by dynamic) are all in the same library as other types that were included correctly!?

[kenzieschmoll]

Applying this workaround fixes the issue.

dart-lang/mockito#612 (comment)