[Stopwatch] Fix array definition from 5.4
merged branch Olden/issue_7639 (PR #7694)

This PR was merged into the master branch.

Discussion
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[Stopwatch] Fix array definition from 5.4

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #7639, #7653
| License       | MIT

I was break tests for 5.3 with my prev. PR #7691

Commits
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35a3c65 [Stopwatch] Fix array definition from 5.4