Reapply "Create _nullFuture and _falseFuture in the root zone."

Originally landed by https://dart-review.googlesource.com/c/sdk/+/49509
Reverted because an internal test is fragile and changes behavior when the bug is fixed.

Change-Id: I8516082e5741547c46aa521a91826846dc101303
Reviewed-on: https://dart-review.googlesource.com/63743
Reviewed-by: Leaf Petersen <leafp@google.com>
Commit-Queue: Leaf Petersen <leafp@google.com>
4 files changed
tree: 5e8cc0ccfa4600e9149c7d3c0cc9c7c50ecac799
  1. .github/
  2. build/
  3. client/
  4. docs/
  5. pkg/
  6. runtime/
  7. samples/
  8. samples-dev/
  9. sdk/
  10. tests/
  11. third_party/
  12. tools/
  13. utils/
  14. .clang-format
  15. .gitattributes
  16. .gitconfig
  17. .gitignore
  18. .gn
  19. .mailmap
  20. .packages
  21. AUTHORS
  22. BUILD.gn
  23. CHANGELOG.md
  24. codereview.settings
  25. dartdoc_options.yaml
  26. DEPS
  27. LICENSE
  28. PATENTS
  29. PRESUBMIT.py
  30. README.dart-sdk
  31. README.md
  32. WATCHLISTS
README.md

Dart

Dart is an open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps.

Using Dart

Visit the dartlang.org to learn more about the language, tools, getting started, and more.

Browse pub.dartlang.org for more packages and libraries contributed by the community and the Dart team.

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents on our wiki.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.

License & patents

See LICENSE and PATENTS.