GROOVY-12068: add fast paths on DTT for better inlining

[blackdrag]

No description provided.

[testlens-app]

✅ All tests passed ✅

⚠️ TestLens detected flakiness ⚠️

Test Summary

Check	Project/Task	Test	Runs
Build and test / lts (21, ubuntu-latest)	:test	ActorTest > testStopCancelsOutstandingTimers()	❌ ✅

🏷️ Commit: ab548c4
▶️ Tests: 16847 executed
⚪️ Checks: 30/30 completed

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[github-actions]

⚠️ Performance Alert ⚠️

Possible performance regression was detected for benchmark.
Benchmark result of this commit is worse than the previous benchmark result exceeding threshold 1.50.

Benchmark suite	Current: ab548c4	Previous: 9f8ebfc	Ratio
org.apache.groovy.bench.AryBench.java ( {"n":"100"} )	0.017211766391723303 ms/op	0.010868337854673785 ms/op	1.58
org.apache.groovy.bench.AryBench.java ( {"n":"1000"} )	0.09094124036925137 ms/op	0.059270394954117345 ms/op	1.53

This comment was automatically generated by workflow using github-action-benchmark.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

JMH summary — classic (commit 8ffd03d)

Speedup vs trailing 90-day baseline on gh-pages. Higher = faster.
1.00 = in line with history. Per-benchmark ratio, geomean within group.
Time-per-op units inverted so direction is consistent.

Group	Speedup	n
bench	0.943 ×	26
core	0.975 ×	77
grails	0.983 ×	80

_{Baseline: dev/bench/jmh/<part>/classic/data.js on gh-pages, trailing 90 days. Daily dashboard · Per-suite raw data}

[github-actions]

JMH summary — indy (commit 8ffd03d)

Speedup vs trailing 90-day baseline on gh-pages. Higher = faster.
1.00 = in line with history. Per-benchmark ratio, geomean within group.
Time-per-op units inverted so direction is consistent.

Group	Speedup	n
bench	0.957 ×	26
core	0.994 ×	77
grails	0.969 ×	80

_{Baseline: dev/bench/jmh/<part>/indy/data.js on gh-pages, trailing 90 days. Daily dashboard · Per-suite raw data}

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.3126%. Comparing base (15c1b26) to head (ab548c4).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                 @@
##               master      #2597        +/-   ##
==================================================
+ Coverage     68.3052%   68.3126%   +0.0074%     
- Complexity      33399      33410        +11     
==================================================
  Files            1518       1518                
  Lines          126879     126896        +17     
  Branches        23005      23007         +2     
==================================================
+ Hits            86665      86686        +21     
+ Misses          32529      32527         -2     
+ Partials         7685       7683         -2     

Files with missing lines	Coverage Δ
...untime/typehandling/DefaultTypeTransformation.java	64.5038% <100.0000%> (+1.1902%)	⬆️

... and 4 files with indirect coverage changes

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