/** * SMI-5881 section 2 — AD_NESTED_INSTRUCTION_BLOCK long-attribute handling: * NO CHANGE regression suite. * * An earlier design draft proposed bounding the opening tag's unbounded * `[^>]*` attribute span to ~200 chars for a small (~3ms at the 10,000-char * cap) performance gain. This was withdrawn: bounding it creates a trivial * evasion (pad the attribute past the bound and the pattern never matches at * all). This suite pins that the span stays unbounded (detection still fires * at any attribute length) and that many failed near-miss match attempts * (an unclosed `