* Restore pyexpat lexical callback compatibility
Forward processing instructions, comments, and CDATA boundaries already emitted by xml-rs so registered Python handlers observe CPython-compatible events.
Constraint: Reuse existing xml-rs events without changing the dependency
Confidence: high
Scope-risk: narrow
Tested: prek; test_pyexpat; test_sax; 402 extra tests; workspace tests; clippy
Assisted-by: Codex:gpt-5.6-sol
* Recognize XML compatibility restored by lexical events
Remove stale expected-failure markers for CPython XML tests now satisfied by pyexpat lexical-event forwarding, and simplify parser event error propagation.
Constraint: CPython test edits are limited to removing stale expectedFailure markers
Confidence: high
Scope-risk: narrow
Directive: Keep parser event dispatch aligned with pyexpat handler behavior
Tested: user-verified full suite; prek run --all-files; cargo run --release -- -m test test_pyexpat test_xml_etree test_xml_etree_c test_minidom test_sax
Assisted-by: Codex:gpt-5.6-sol
Kwak Byoung Min
fe7993572c