perf(allocator/vec): reduce pointer maths in Vec::extend_desugared

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[overlookmotel]

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• perf(allocator/vec): reduce pointer maths in Vec::extend_desugared #11087 👈 (View in Graphite)
• perf(allocator/vec): Vec::extend_desugared set len only at end #11082
• refactor(allocator/vec): access len and cap fields via getters/setters #11081
• refactor(allocator/vec): re-order methods #11080
• perf(allocator/vec): remove SetLenOnDrop #11079
• refactor(allocator/vec): limit scope of #[expect(clippy::cast_possible_truncation)] #11074
• perf(allocator/vec): remove alloc_guard from RawVec::from_raw_parts_in + clarify safety docs #11073
• docs(allocator/vec): correct safety comments for RawVec::append_elements #11072
• refactor(allocator/vec): clarify comment #11071
• main

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #11087 will not alter performance

_{Comparing 05-16-perf_allocator_vec_reduce_pointer_maths_in_vec_extend_desugared_ (223a2a4) with 05-16-perf_allocator_vec_vec_extend_desugared_set_len_only_at_end (c325291)}

Summary

✅ 35 untouched benchmarks
🆕 1 new benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
🆕	linter[checker.ts]	N/A	3.1 s	N/A