Support the Jacoco filter merge operation in Java branch coverage.

Instructions that are indicated to be merged must have their corresponding
coverage expressions (`CovExp`) combined in a pairwise fashion.

e.g. A pair of branch expressions that should be merged:
`BranchExp(a, b)`, `BranchExp(c, d)`

Becomes:

`BranchExp(a | c, b | d)`

This is distinct from the previous merge operation on BranchExp which
simply joined the branches of the two objects (this has been renamed to
concatenate).

Part of #12696.

Closes #13972.

PiperOrigin-RevId: 396573429
3 files changed
tree: 919c30a9544057e4b024a1f69a4929834f32224c
  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. CODE_OF_CONDUCT.md
  15. CODEBASE.md
  16. CODEOWNERS
  17. combine_distfiles.py
  18. combine_distfiles_to_tar.sh
  19. compile.sh
  20. CONTRIBUTING.md
  21. CONTRIBUTORS
  22. distdir.bzl
  23. distdir_deps.bzl
  24. ISSUE_TEMPLATE.md
  25. LICENSE
  26. README.md
  27. SECURITY.md
  28. WORKSPACE
README.md

Bazel

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