Hojun-Cho
f56b056ed3
Compiles every test/lang/*_test.ww twice through the same cstage ww orchestrator swapping only the frontend (WW_W6C = w6c vs w6c_ww) and asserts every per-package <pkg>.s (incl the synth-main __root.s) is byte-identical. This is the rule-10 stage-symmetry gate test/runww.ww reserves as T2. .s-only (Q3); .o/.wwi are 991/992's surface. Distinct WW_PKGCACHE per leg, both caches+sepworks wiped per file. Recipe is parameterized over an input-class (file-list + build-verb); only the test/lang class ships now, fold-6 slots in build --sep for selfhost/data. Wired into make test (pre-push) only, not test-commit/test-unit.