perf(sourcemap): avoid copying sources

[overlookmotel]

Just a test.

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[overlookmotel]

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• perf(sourcemap): avoid copying sources #4542 👈
• refactor(sourcemap)!: avoid passing Results #4541
• main

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[codspeed-hq]

CodSpeed Performance Report

Merging #4542 will degrade performances by 13.12%

_{Comparing 07-29-perf_sourcemap_avoid_copying_sources (0ae5a70) with 07-29-refactor_sourcemap_avoid_passing_result_s (94c2cc6)}

Summary

❌ 1 regressions
✅ 31 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	07-29-refactor_sourcemap_avoid_passing_result_s	07-29-perf_sourcemap_avoid_copying_sources	Change
❌	sourcemap[cal.com.tsx]	74.5 ms	85.8 ms	-13.12%