selfhost/frontend/vocab.ludic holds every keyword with its role (declaration,
modifier, statement, operator, constant), every declaration's form, the built-in
types and phases, every attribute with what it goes on, its arguments and a
one-line doc, the operators and the literal forms; `ludicc --emit-syntax` prints
it as JSON ("syntax_version": 1) and exits before reading any program. The
parser dispatches on words where it meets them, so the table is held to it from
the emitter's side: a keyword's "reserved" is is_reserved_word's answer, a phase
must pass is_phase_name and a field attribute listed as read must pass
at_field_known, or the emitter refuses to print. Reseeded (both seeds assemble;
bootstrap-cfree: out.ll == seed.ll).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>