Refresh engine comparison benchmark results

[lahma]

Full re-run of the EngineComparison suite on current main, certifying the 2026-07-10 batch (#2613, #2615–#2620) on the published table. Same machine/SDK as the 2026-07-09 refresh; competitor versions unchanged, their rows served as thermal canaries (times within ±3%, allocations byte-identical).

Highlights vs the 2026-07-09 refresh

• dromaeo-string-base64 allocation −30% (2.30 → 1.62 MB per op), -modern −4.3% time; the classic row is now ranked first outright (previously statistically tied with NiL.JS). This is Member-bound loop test lane for i < arr.length / i < s.length #2617's member-bound comparison lane: i < s.length / i < arr.length loop tests read the length unboxed instead of materializing a number per iteration.
• The batch's engine-reuse wins are deliberately called out as not visible here — every row in this table creates a fresh engine per op. Re-evaluating prepared scripts on a long-lived engine gets Reuse hoisted function definitions across re-evaluations on an engine #2613/Reuse class member definitions across class re-evaluations #2615 (hoisted-function and class-member definition reuse, class re-evaluation −23% time / −34% alloc) and Re-resolve slot locations when a shared handler tree changes function instance #2616 (slot-cache fix keeping all unboxed lanes alive from the second re-evaluation onward, −72% time on a re-evaluated 100k-iteration loop). The README notes this so embedders don't under-estimate the reuse path.
• Everything else moved within the table's documented noise bands (core-eval ±2% bimodality, regexp/string families ±3–7%). Rank changes: the base64 promotion above, and stopwatch where NiL.JS's own row drifted −3% and BDN now groups it one rank ahead (Jint 136 ms, within ~3%, still ahead of Jurassic — prose updated honestly).
• Prose/derived numbers synced to the new table (base64 alloc ratios 8.5×→12×, field-max 332×→472×, cube 5.99→6.03 ms, core-eval 0.92→0.93 ms).

🤖 Generated with Claude Code

https://claude.ai/code/session_01BY8HoKam5H8vTPn1bMY2Hv