Parse spread collections in map literals

This CL adds support for parsing spread collection entries in map literals.
For now, all listeners report an error on the spread collection tokens
'...' and '...?' until support has been added for those listeners.

Change-Id: I299bb1524fda39746471c07e618df6a2305b1a2e
Reviewed-on: https://dart-review.googlesource.com/c/89860
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Dan Rubel <danrubel@google.com>
7 files changed
tree: ddf3249bad551916c201b84137a542f46460e5bb
  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

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