Skip for-loop alloc in go/vt/discovery/healthcheck.go

[timvaillancourt]

Description

This PR skips an allocation in a for-loop from go/vt/discovery/healthcheck.go

If I understand correctly this will cause 1 x allocation for var tabletHealths []*TabletHealth per execution of .waitForTablets(...) vs <numTargets> x <numRetries>

Related Issue(s)

N/A

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
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• Documentation was added or is not required

Deployment Notes

[vitess-bot]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (27be916) 67.53% compared to head (536c915) 67.53%.
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15326      +/-   ##
==========================================
- Coverage   67.53%   67.53%   -0.01%     
==========================================
  Files        1561     1561              
  Lines      193387   193391       +4     
==========================================
+ Hits       130607   130608       +1     
- Misses      62780    62783       +3     

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[deepthi]

Good find.