nx_dom_oracle_gate.nx

nx_dom_oracle_gate.nx -- BRUTE-FORCE DOMINANCE ORACLE for dom_fn.nx. The banked LICM awakening rung (nx_opt.nx DORMANT-COMPAT, 2026-06-10): "Awakening rung = dominance brute-force oracle FIRST, then this load." This gate IS that oracle. Definition-level ground truth: D dominates B iff removing D makes B unreachable from entry. Compares that, pairwise, against dom_compute_fn's idom chains over EVERY function of the FULL self-host compiler source (the exact merge-heavy CFGs that broke the 06-10 awakening), on the post-parse CFG AND the post-opt_run CFG (the shapes LICM actually sees inside the fixpoint). Skips (reported, never silent): functions with any block n_preds > 3 (the pred-truncation class -- opt_licm DECLINES these, so they are outside the awakening's blast zone) and functions with n_blocks > DOR_MAX_B (brute cost). NEGATIVE CONTROL: a deliberately corrupted idom entry must produce mismatches -- proves the comparator can see a lie. Verdict GREEN iff mismatches == 0 AND negctl fired. license_tier: ORIGINAL