Hojun-Cho
1726bcef18
Parallel to TY_STR/TY_SLICE branches at cgen.c:1939/1962. Word-copy from src slot to field+k*8 via AX, MOVL/MOVB ragged tail. N_IDENT rhs only — struct-call-result and struct-literal rhs are different code paths, filed as task #27. Symmetric in N_ASSIGN field case AND spine-walker terminal; mirrored in wwstage cgassign four sub-shapes (*struct base, direct local, global, spine terminal).