[test] Move profilingCommitTreeBuilder to versioned renderer

[everettbu]

Mirror of facebook/react#35711
Original author: eps1lon

---

Summary

Avoids duplicating the tests. Assertions are and should be equivalent anyway.

Test plan

• modern render test: CI
• legacy render test: node ./scripts/ci/download_devtools_regression_build.js 16.9 --replaceBuild && node ./scripts/jest/jest-cli.js --build --project devtools --release-channel=experimental --reactVersion 16.9

[greptile-apps]

Greptile Overview

Greptile Summary

• Refactors profilingCommitBuilder-test.js to use getVersionedRenderImplementation() instead of separate legacy vs createRoot render implementations.
• Removes duplicated test cases by relying on the version-gated renderer selection in __tests__/utils.js.
• Keeps the same profiling workflow (start/stop profiling, render multiple commits) and validates commit tree reconstruction via snapshots and commitTree node counts.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk.
• Change is confined to a single test file and uses an existing version-gated renderer helper already used across the test suite; assertions remain equivalent and no production code paths are modified.
• No files require special attention

Important Files Changed

Filename	Overview
packages/react-devtools-shared/src/tests/profilingCommitTreeBuilder-test.js	Consolidates legacy and createRoot profiling commit tree builder tests into a single test using getVersionedRenderImplementation(), avoiding duplicated assertions while preserving snapshots and commitTree size checks.

[greptile-apps]

_{1 file reviewed, no comments}

_{Edit Code Review Agent Settings | Greptile}

[everettbu]

Upstream PR was closed or merged. Code is synced via branch mirror.