94a of the C-mig2 split (rob rule-11): 13 Pattern-A gates that fed a
.combined.ww to w6c/w6c_ww now drive two --sep builds (ww / ww_ww) and
byte-diff the concatenated per-package .sepwork/*.s, mirroring #93's
convention. Lands pre-flip while combined.ww still exists as the
reversible safety net. Test-only; all 5 binary pins HOLD.
989_enumcap_run deferred to 94b (its decisive assertion is a combined.ww
content diff, not a .s diff).
910_at_test.c and 997_at_test_ww.c build via `ww build` then read
<stem>.combined.ww as a driver side-effect; the E3 flip removes that
side-effect, so they cannot pass post-flip. Their coverage was fully
re-hosted in E2-C2 -- every axis (run-exit, -T cs/ww byte-id, the
userman/badsig/undefbody/linkfail rejects, the dup-decl family, modfn
coexist, user `fn run` coexist) has a live home in 989_septest_run,
911_attest_drop, or 989_declns_sep, several strengthened. Deleting them
before the flip keeps `make test` bisect-clean.
Also retargets a stale 'Sibling of 910_at_test' doc comment in
911_attest_record.c to the surviving gates.
lib/test/run.ww: fork+wait4 runner; each @test runs in its own child,
abort/SEGV/FPE decoded from wait-status, failures recorded and the run
continues; exit = fail count. Tests are hermetic: module globals do not
persist test-to-test (fresh fork image; sanctioned divergence from
harec's shared-process __test_main, no setjmp/signal layer needed).
-T synth (both stages) emits a module-global (str,*fn() void) table +
return run(table) instead of straight-line calls. Driver twins bundle
lib/test under test mode and gain ww test -c/-o (go test -c) so the
byte-id gates diff the same artifact the real path builds. Gates
989/910/997 rewired onto it; new 911 pins record-and-continue across
all three fault classes; 949 +3 rows. (#17-team commit-2)
