The two loud siblings filed in d3822d77: (a) an auto-deref *[N]T
indexed base (hs[k].result) failed cgplaceaddr's N_INDEX arm, which
knew only TY_SLICE/TY_ARRAY bases — add the one-pointer hop (the
(*hs)[k] form made implicit; load shape is the slice .ptr word's);
(b) a bare slice-element aggregate source (use(sl[k])) fell off
aggarg_srcaddr's ident-array-only N_INDEX arm into the #271 loud
stop — route the miss through the same cgplaceaddr fallback the
N_DOT arm uses. Both stages, byte-identical (probe matrix: let-copy,
field-assign, call-arg, return, indexed-store all IDENT).
After this, every ADDRESSABLE aggregate source resolves: ident
(local/module-let), deref, dot-chain, and index over array/slice/
ptr-array spines recurse through cgplaceaddr; the remaining loud
paths are rvalue sources (#40 family) and the #274 const-def arg,
both documented divergences. 8 rows added to idxdot_aggcopy_test.
Hojun-Cho
84206ff4ed