stream: apply more stream/iter fixes, round 3

[jasnell]

See each individual commits.

Stacks on #66030 the first seven commits here are from there.. this will remain draft until that lands

[nodejs-github-bot]

Review requested:

• @nodejs/quic
• @nodejs/streams

[codecov]

Codecov Report

❌ Patch coverage is 87.93605% with 83 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.29%. Comparing base (c0ed28f) to head (0b2fffe).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/internal/streams/iter/classic.js	85.97%	61 Missing and 7 partials ⚠️
lib/internal/streams/iter/transform.js	81.25%	14 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main   #66079    +/-   ##
========================================
  Coverage   90.29%   90.29%            
========================================
  Files         790      790            
  Lines      272883   273284   +401     
  Branches    52118    52214    +96     
========================================
+ Hits       246387   246757   +370     
- Misses      16943    16985    +42     
+ Partials     9553     9542    -11     

Files with missing lines	Coverage Δ
lib/internal/quic/quic.js	100.00% <100.00%> (ø)
lib/internal/streams/iter/broadcast.js	90.55% <100.00%> (+0.04%)	⬆️
lib/internal/streams/iter/pull.js	83.87% <100.00%> (+0.05%)	⬆️
lib/internal/streams/iter/share.js	89.35% <100.00%> (+0.03%)	⬆️
lib/internal/streams/iter/transform.js	92.49% <81.25%> (-3.35%)	⬇️
lib/internal/streams/iter/classic.js	90.23% <85.97%> (+1.26%)	⬆️

... and 25 files with indirect coverage changes

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