[Skylark] Improve Skylark interpreter performance.

According to JMH and JIT assembly generated for iterators and index
accesses, iterator methods like `hasNext` and `next` are not optimized
away and result in 3-4X slower execution.

Not using an iterator reduces Buck parse time for FB's internal Android
apps by 7%+.

Closes #5735.

PiperOrigin-RevId: 207073078
2 files changed
tree: c4e890a1d89a49630aa2f5800d5fbb9f85571d2c
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. BUILD
  12. CHANGELOG.md
  13. CODEOWNERS
  14. combine_distfiles.py
  15. combine_distfiles_to_tar.sh
  16. compile.sh
  17. CONTRIBUTING.md
  18. CONTRIBUTORS
  19. distdir.bzl
  20. ISSUE_TEMPLATE.md
  21. LICENSE
  22. README.md
  23. WORKSPACE
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