tree 27b490575fe6b29c7b2ec82f939e67a04201489f
parent 16b6c84e6140c7d45164b8df00ae55831c1cee77
author Janice Collins <jcollins@google.com> 1539377487 -0700
committer GitHub <noreply@github.com> 1539377487 -0700
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Stop using old-style supermixin syntax. (#1794)

* Disable supermixins

* Avoid old-style supermixins while maintaining Dart 2.0 compatible

* Enable stable again