bazel C++: remove redundant tool methods like ar_executable()

The CcToolchainProvider defines each of these attributes both as a
field and as a method, so x.f is equivalent to x.f(), which breaks an
invariant of the Starlark spec that x.f() should be decomposable into
y=x.f; y().

This change removes the methods.

RELNOTES[INC]:
The following attributes of CcToolchainProvider, which formerly were
accessible both as fields (x.f) and as methods (x.f()), are now only fields:

            ld_executable
       objcopy_executable
      compiler_executable
  preprocessor_executable
            nm_executable
       objdump_executable
            ar_executable
         strip_executable

Remove the call parens (x.f() -> x.f) if your code uses them as methods.

PiperOrigin-RevId: 284776115
3 files changed
tree: 202fd4c7a449400c58181c77cbb96afbbb3181fb
  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
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