worker: give names to MessagePort functions

[LiviaMedeiros]

This fixes names for:

• worker_threads.MessagePort.prototype.hasRef (was: anonymous)
• worker_threads.MessagePort.prototype.close (was: anonymous)
• worker_threads.MessagePort.prototype.[kCreateEvent] (was: value)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.21%. Comparing base (5f841fb) to head (ac4c5ac).
Report is 38 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #58307      +/-   ##
==========================================
+ Coverage   90.19%   90.21%   +0.02%     
==========================================
  Files         631      633       +2     
  Lines      186670   186837     +167     
  Branches    36670    36680      +10     
==========================================
+ Hits       168374   168563     +189     
+ Misses      11112    11075      -37     
- Partials     7184     7199      +15     

Files with missing lines	Coverage Δ
lib/internal/worker/io.js	99.19% <100.00%> (+<0.01%)	⬆️

... and 47 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/66827/