[vm/compiler] proper reason for deopt stub

Rationale:
Reporting check-class instead of the proper unbox
yields an incorrect compiler diagnostic, which may
obscure subsequent debugging.

https://github.com/dart-lang/sdk/issues/35335

Change-Id: I99358ef3432e77b4432d9a96755747eaadc27067
Reviewed-on: https://dart-review.googlesource.com/c/87161
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2 files changed
tree: 8536ef61b14bf34bd2b821d3315d08d1224806cb
  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. .vpython
  22. AUTHORS
  23. BUILD.gn
  24. CHANGELOG.md
  25. codereview.settings
  26. CONTRIBUTING.md
  27. dartdoc_options.yaml
  28. DEPS
  29. LICENSE
  30. PATENTS
  31. PRESUBMIT.py
  32. README.dart-sdk
  33. README.md
  34. WATCHLISTS
README.md

Dart

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