Audit of the janet.*/jolt.interop/STM corpus cases vs Chez equivalents: the Janet
FFI-bridge cases (janet/string, janet/type, janet.math/sqrt, janet.string/ascii-
upper) test functionality already covered by PORTABLE corpus cases (str 29, type 9,
sqrt 3, upper-case 9), so they're safe to delete in Phase 5. Two needed a Chez
equivalent so they pass instead of being lost:
- clojure.lang.LockingTransaction/isRunning -> false (no STM on jolt).
- line-seq: the corpus case used janet/spit setup but was the SOLE line-seq
coverage (0 other cases). Ported janet/spit->spit, and added a native Chez
line-seq (drain a jhost io/reader + split on newline; no trailing empty line)
that delegates a Janet map-reader to the overlay version.
zero-Janet 2694->2696, prelude floor 2648; self-host + Janet gate + JVM cert green.
jolt-cf1q.7 jolt-0obq
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