[CFE] Add a reordering fuzzing step to the strong unit tests

This CL:
* Adds a "reordering fuzzing step", i.e. it tries to sort the fields,
  procedures etc in both ascending order and descending order
  to verify that there are on crashes and no changes in error vs
  no error. This has been tested on http://dartbug.com/34803
  before the fix landed.
* Introduces an attempt at "visiting the outline" of the "direct from
  parser ast".

Change-Id: Ic3f5a776839030bb48a35eeee8575b37c19be453
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182504
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
5 files changed
tree: 262027c84df31fe9b0582c2017980457c7efaf5f
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. client/
  6. docs/
  7. pkg/
  8. runtime/
  9. samples/
  10. samples-dev/
  11. samples_2/
  12. sdk/
  13. tests/
  14. third_party/
  15. tools/
  16. utils/
  17. .clang-format
  18. .gitattributes
  19. .gitconfig
  20. .gitignore
  21. .gn
  22. .mailmap
  23. .packages
  24. .style.yapf
  25. .vpython
  26. AUTHORS
  27. BUILD.gn
  28. CHANGELOG.md
  29. codereview.settings
  30. CONTRIBUTING.md
  31. DEPS
  32. LICENSE
  33. PATENT_GRANT
  34. PRESUBMIT.py
  35. README.dart-sdk
  36. README.md
  37. sdk_args.gni
  38. WATCHLISTS
README.md

Dart

A client-optimized language for fast apps on any platform

Dart is:

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Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

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