Update lower and upper bounds used in type inference

During type inference, use the standard upper bound function SUB and
the standard lower bound function SLB defined in

https://github.com/dart-lang/sdk/blob/master/docs/language/informal/extreme-upper-lower-bounds.md

Change-Id: Ia767ae1e27ec3fac435cfe3f84b59d4bbc1589f7
Reviewed-on: https://dart-review.googlesource.com/70281
Commit-Queue: Kevin Millikin <kmillikin@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
Reviewed-by: Daniel Hillerström <hillerstrom@google.com>
4 files changed
tree: 2fcd48911aa18859d5468353ea4e3bb7f8edbdd1
  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. CONTRIBUTING.md
  26. dartdoc_options.yaml
  27. DEPS
  28. LICENSE
  29. PATENTS
  30. PRESUBMIT.py
  31. README.dart-sdk
  32. README.md
  33. 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.