tree cfd3ffc490b00c4da15ba2f9478305a14923083e
parent 9c0be5d52545c6a6829800e507237ddfc73255de
author pq <pquitslund@google.com> 1520721657 -0800
committer pq <pquitslund@google.com> 1520721657 -0800

Update .gitignore to new `dart_tool` pub cache

See: https://github.com/dart-lang/sdk/issues/32030