cargo-test gate fix + runtime/codegen fix batch
Rolls up the fixes that landed on main after v0.5.1204:
- test:
blocklist_addsubnet_prefixcalledTempDir::join(no such method) — an E0599 that broke the full-workspace cargo-test gate (red on the nightly cron since 2026-06-20; per-PR CI never buildstests/*.rs). Nowdir.path().join(...). (#5641) - fix(net,http,tls): #1781 — handle SSO short strings in value conversion. (#5638)
- fix(runtime): bind inherited prototype-accessor methods to the receiver. (#5637)
- fix: #5594 — Annex B.3.3.3 global eval function-declaration binding. (#5636)
- fix(temporal): #5580 — era/eraYear for non-ISO calendars in PlainDateTime/ZonedDateTime/PlainMonthDay field bags. (#5635)
- fix(runtime): #5592 —
class X extends <Proxy>segfault. (#5634) - fix(runtime): #5591 — string-coercing a class/object method no longer segfaults. (#5633)