[vm/kernel/bytecode] Revise access to instance fields in bytecode

Constant pool:

* Field constant pool entry is renamed to StaticField
* FieldOffset constant pool entry is replaced with InstanceField.
  InstanceField occupies 2 slots for field offset and field object.
* ContextOffset constant pool entry is removed.
* TypeArgumentsFieldOffset is renamed to TypeArgumentsField

Bytecodes:

* LoadFieldTOS and StoreFieldTOS require InstanceField entry.
* New bytecodes added: LoadContextParent, StoreContextParent,
  LoadContextVar, StoreContextVar, LoadTypeArgumentsField.

This CL is a preparation for compilation of bytecodes related
to instance field accesses.

Change-Id: I1d6274e94bd7cd764e4fc83d9847daf4f21e5a25
Reviewed-on: https://dart-review.googlesource.com/68843
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: RĂ©gis Crelier <regis@google.com>
15 files changed
tree: f4c31a660fa33bb3def787e844c53f7041a4ec03
  1. .clang-format
  2. .gitattributes
  3. .gitconfig
  4. .github/
  5. .gitignore
  6. .gn
  7. .mailmap
  8. .packages
  9. AUTHORS
  10. BUILD.gn
  11. CHANGELOG.md
  12. DEPS
  13. LICENSE
  14. PATENTS
  15. PRESUBMIT.py
  16. README.dart-sdk
  17. README.md
  18. WATCHLISTS
  19. build/
  20. client/
  21. codereview.settings
  22. dartdoc_options.yaml
  23. docs/
  24. pkg/
  25. runtime/
  26. samples-dev/
  27. samples/
  28. sdk/
  29. tests/
  30. third_party/
  31. tools/
  32. utils/
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