[pkg:vm_service] fix some analysis errors in the generated vm_service library

Change-Id: I5a09116928e2eff9125ca8033458e485e7f15acb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/113756
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Devon Carew <devoncarew@google.com>

https://dart.googlesource.com/sdk/+/209c6f8ab93cbbe810a786bb5b78301d27ec26ab
1 file changed
tree: b900d1b22163149ddd56d139d5bcdd4df89b7503
  1. commits.json