Analyzer/FE integration for writes to read-only variables.

Previously, when the user attempted to write to a read-only variable,
the front end creates a SyntheticExpressionJudgment to represent the
write.  This CL changes it to a new class,
InvalidVariableWriteJudgment, whose `infer` method sends the
appropriate resolution information to the analyzer.  Also, it ensures
that inference is performed on the RHS of the assignment, so that it
gets resolved too.

Partially addresses #33694.

Change-Id: I56b12e5082434ca8569d15df1b01e5aaad8f0a7d
Reviewed-on: https://dart-review.googlesource.com/63160
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
11 files changed
tree: 0540722d0f5f87a58895e6027f506b985452f842
  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

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