Fix up a few more version compatibility issues with tests.

Review Request #14893 — Created March 10, 2026 and updated

Information

ReviewBot
release-4.x

Reviewers

Tests on CI for the worker are still failing, with a few more version
compatibility errors. I've updated the clang tests to just reflect the
latest output (since that appeared locally for me as well), and then
made the gotool and cppcheck output parsing and validation more flexible
across versions.

Testing Done:
- Ran unit tests locally.
- Copied gotool and cppcheck changes into the CI environment and
verified they worked with those versions as well.


 
Summary ID
Fix up a few more version compatibility issues with tests.
Tests on CI for the worker are still failing, with a few more version compatibility errors. I've updated the clang tests to just reflect the latest output (since that appeared locally for me as well), and then made the gotool and cppcheck output parsing and validation more flexible across versions. Testing Done: - Ran unit tests locally. - Copied gotool and cppcheck changes into the CI environment and verified they worked with those versions as well.
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