Erlang's suites load into one session and each exposes a pass counter plus a
*count* (total) counter rather than a fail counter, so MODE=dict fits directly:
each suite's runner is a dict literal {:passed P :failed (- count P) :total count}.
No driver change needed (dict mode already supports arbitrary runner expressions).
conformance.conf + 3-line shim; historical scoreboard schema preserved.
Parity verified 761/761 (0 fail), every suite matching baseline.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Extend the shared driver's MODE=counters with a backward-compatible SUITES
format: name:file[:pass-var:fail-var[:extra-preload ...]]. Optional per-suite
counter symbols (override the global COUNTERS_PASS/COUNTERS_FAIL) and per-suite
preload chains (loaded after the global PRELOADS). Plain name:file entries are
unchanged — verified against haskell (fib/sieve/quicksort 2/2/5, matches
committed scoreboard).
common-lisp has 8 distinct per-suite counter pairs and a different preload
chain per suite, so it could not fit the single-counter/fixed-preload model;
the extended format expresses it directly. conformance.conf keeps the historical
scoreboard schema; conformance.sh becomes the 3-line shim.
Result 487/487 (0 fail) vs the old 305/0 baseline — higher and explained: the
old per-suite 'timeout 30' was too tight for the slow eval suite (~15-25s under
contention), silently recording it as 0; the driver's 180s budget recovers its
true 182. geometry/mop-trace stay 0/0 (pre-existing refl-class-chain-depth-with
load error; counter vars defined as 0 -> clean gc-result, no fail-fallback).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Classified migratable-in-kind (SX suites over epoch, not a foreign runner)
but blocked on driver feature gaps: 8 distinct per-suite counter variable
name pairs and per-suite preload chains, neither supported by MODE=counters
(single global counter + fixed preloads) nor MODE=dict (load-time counter
collisions across suites). Baseline 305/0 across 12 suites. Did not migrate;
conformance.sh left untouched. Driver unchanged (out of per-iteration scope).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
