bazel syntax: remove Location parameters

Remove Location parameter from SkylarkIndexable.getIndex
(and thread parameter from SkylarkQueryable).
Also, make SkylarkIndexable and SkylarkQueryable
consistently take a StarlarkSemantics.

Eval: don't pass Locations down into evaluation;
obtain them only after an error, on the way up.
(This is a prerequisite for compilation, and for
finer-grained syntax locations. This CL addresses only
the easy cases.)

Also:
- Dict.get2: avoid duplicate hash lookup in success case.
- EvalUtils.index: pass mutability and semantics, not thread
- remove unnecessary parameters to binary operators.
- improvements to error messages
PiperOrigin-RevId: 289523719
20 files changed
tree: df8796e7e420235ee9685d9ee79d0259e6867ab2
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .bazelrc
  9. .gitattributes
  10. .gitignore
  11. AUTHORS
  12. BUILD
  13. CHANGELOG.md
  14. CODEOWNERS
  15. combine_distfiles.py
  16. combine_distfiles_to_tar.sh
  17. compile.sh
  18. CONTRIBUTING.md
  19. CONTRIBUTORS
  20. distdir.bzl
  21. ISSUE_TEMPLATE.md
  22. LICENSE
  23. README.md
  24. WORKSPACE
README.md

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