cgassign's two element-store sites (N_DOT and N_INDEX index targets) fed the
index node into indexvaluetnode to recover the element type. The tagged-store
machinery reads tinfo directly post-#68, so both sites now read the checker-
stamped element tinfo via lhs.type_: esz from .size (mirror #60), tagged gate
via the shared istaggedtype/slotsize/cgwidentaggedstore path (all NAMED-
peeling). cstage parity: cgen.c:3507-3523 (idx_eff(base->type)->sub->size).
The new esz reads the element's natural .size, where the old elemsizeofc
routed struct elements through slotsize -- so a padded-struct chained-index
store (`[][]Point`) now matches cstage's ->size instead of diverging; that
shape is untested (#7 indexbaseesz territory), so this is faithfulness, not
a corpus change.
With cgassign migrated, indexvaluetnode has zero external callers; dotfieldtnode's
sole caller was indexvaluetnode; rhstargetname is self-recursive only -- all
three retired (-132 LOC). This closes the A.6.3 AST-walker arc: the *node
type-resolvers that existed because tinfo was lossy on nominal identity are
gone, now that Phase-N (#63-#68) built the TY_NAMED layer and every consumer
reads the stamped tinfo. make test 134/134, byte-id 950+990-997 hold.
Hojun-Cho
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