GROOVY-12323: ChannelSelect: add claimable send offers (output guards)

[paulk-asert]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 81.87135% with 31 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.7225%. Comparing base (18c0f4f) to head (bb27af1).

Files with missing lines	Patch %	Lines
...ache/groovy/runtime/async/DefaultAsyncChannel.java	80.4878%	7 Missing and 9 partials ⚠️
...a/org/apache/groovy/runtime/async/SelectClaim.java	78.7234%	4 Missing and 6 partials ⚠️
src/main/java/groovy/concurrent/ChannelSelect.java	88.0952%	2 Missing and 3 partials ⚠️

Additional details and impacted files

@@                Coverage Diff                 @@
##               master      #2849        +/-   ##
==================================================
+ Coverage     70.7073%   70.7225%   +0.0152%     
- Complexity      36648      36687        +39     
==================================================
  Files            1573       1574         +1     
  Lines          134146     134236        +90     
  Branches        24733      24763        +30     
==================================================
+ Hits            94851      94935        +84     
  Misses          30778      30778                
- Partials         8517       8523         +6     

Files with missing lines	Coverage Δ
src/main/java/groovy/concurrent/ChannelSelect.java	88.0435% <88.0952%> (+1.4763%)	⬆️
...a/org/apache/groovy/runtime/async/SelectClaim.java	78.7234% <78.7234%> (ø)
...ache/groovy/runtime/async/DefaultAsyncChannel.java	84.9057% <80.4878%> (-1.6192%)	⬇️

... and 8 files with indirect coverage changes

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