perf: cache swc loader

[CPunisher]

Summary

Checklist

Assume:

1. Creating an SwcLoaderJsOptions is costly
2. Most modules are created with same swc loader options

Cost:

1. RwLock and concurrent runtime.
   Maybe there is a better cache strategy.

🙏 Help me run the benchmark.

• Tests updated (or not required).
• Documentation updated (or not required).

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[JSerFeng]

!bench

[rspack-bot]

📝 Benchmark detail: Open

Name	Base (2024-09-25 5fd46ef)	Current	Change
10000_development-mode + exec	2.27 s ± 30 ms	2.23 s ± 23 ms	-1.93 %
10000_development-mode_hmr + exec	701 ms ± 15 ms	704 ms ± 12 ms	+0.34 %
10000_production-mode + exec	2.93 s ± 20 ms	2.89 s ± 38 ms	-1.51 %
arco-pro_development-mode + exec	1.84 s ± 80 ms	1.87 s ± 93 ms	+1.72 %
arco-pro_development-mode_hmr + exec	436 ms ± 2.9 ms	436 ms ± 3.4 ms	-0.09 %
arco-pro_production-mode + exec	3.32 s ± 72 ms	3.29 s ± 91 ms	-0.76 %
arco-pro_production-mode_generate-package-json-webpack-plugin + exec	3.35 s ± 98 ms	3.38 s ± 79 ms	+0.96 %
threejs_development-mode_10x + exec	1.7 s ± 17 ms	1.7 s ± 14 ms	-0.06 %
threejs_development-mode_10x_hmr + exec	788 ms ± 9.3 ms	792 ms ± 15 ms	+0.47 %
threejs_production-mode_10x + exec	5.26 s ± 11 ms	5.27 s ± 34 ms	+0.01 %

[JSerFeng]

Thanks.

Modules in our bench cases are not that many, so the benefits may not be so obvious, but personally I think it's great for some large projects

[chenjiahan]

@JSerFeng can we merge this

[chenjiahan]

!eco-ci

[rspack-bot]

📝 Ran ecosystem CI: Open

suite	result
modernjs	✅ success
rspress	✅ success
rslib	❌ failure
rsbuild	✅ success
examples	✅ success
devserver	✅ success

[JSerFeng]

@JSerFeng can we merge this

sure, I'll approve once this is not draft

[chenjiahan]

🎉