The task model is still allowed in analyzer tests since we still have
some unit tests of non-task-model functionality that rely on the task
model to do their testing (see #35734).
Unit tests whose sole purpose was to test the task model have been
removed. Test files that now empty have been removed. Non-empty test
files that now contain no tests of their own have had their `main`
functions removed, and have been renamed so that the testing
infrastructure will no longer attempt to run them.
Change-Id: I8b4d0b2dde9337c4e1fe91e443a2c9da6eee8f4f
Reviewed-on: https://dart-review.googlesource.com/c/90720
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
Paul Berry