Tom Boucher b946051a46 fix(#3498): escapeRegex falls back below Node 24 (no RegExp.escape) (#3499) ...

RegExp.escape is ES2026 (first shipped in Node 24); pattern.cts called it
unconditionally, and the build consumes the module
(scripts/gen-loop-host-contract.cjs), so npm run build failed on Node 22 and
the gsd-test linux-node22 lane could not reach run_tests.

Fix: prefer the built-in when present, else an in-file metachar escape —
still the sole owner of escaping (#3212 invariant; lint scope unchanged).
Builtin captured at module load so runtime mutation cannot flip the path.

Regression: tests/pattern.test.cjs section 4 — child-process probes neuter
RegExp.escape before/after require and assert match-behavior equivalence.

Co-authored-by: sim <sim@local>

2026-08-14 13:51:33 -04:00

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