perf(lexer): remove string allocation

[overlookmotel]

Small optimization. Remove unnecessary ArenaString allocation when decoding octal escape sequences. Also calculate the unescaped value at same time as reading the bytes from source, instead of decoding a 2nd time with u32::from_str_radix.

[overlookmotel]

• refactor(allocator)!: remove String #11262
• refactor(transformer): use StringBuilder instead of String #11260
• refactor(parser): use StringBuilder instead of String #11259
• refactor(ast, span): use StringBuilder instead of String #11258
• feat(allocator): introduce StringBuilder #11257
• feat(span): add Atom::from_strs_array_in method #11261
• perf(lexer): remove string allocation #11255 👈 (View in Graphite)
• perf(transformer/react-refresh): faster base64 encoding #11254
• main

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #11255 will degrade performances by 12.08%

_{Comparing 05-23-perf_lexer_remove_string_allocation (254048d) with 05-23-perf_transformer_react-refresh_faster_base64_encoding (3281e99)}

Summary

❌ 1 regressions
✅ 37 untouched benchmarks

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

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	mangler[cal.com.tsx]	3 ms	3.5 ms	-12.08%

[graphite-app]

Merge activity

• May 24, 2:27 AM UTC: Boshen added this pull request to the Graphite merge queue.
• May 24, 2:38 AM UTC: Merged by the Graphite merge queue.