run_type_tests.py, run_signal_tests.py, run_continuation_tests.py all
needed the same sx_ref.eval_expr/trampoline override to tree-walk that
was applied to the CEK test runners. Without this, transpiled HO forms
(ho_map, etc.) re-entered CEK mid-evaluation causing "Unknown frame
type: map" errors. All 186 tests now pass across 5 suites.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>