Hojun-Cho
5bf30f209c
Parses byte-identical to the C frontend on enum sources (verified via `diff` of wwdump vs wwdump_ww -a on an enum-using fixture). The selfhost side reserves the slot in the AST and TY_* enums so later check.ww and cgen mirror work doesn't shift numeric IDs. Codegen-side enum support (member-value folding in cgdot, enum↔int pass-through in cgtypeassert) is deferred — current selfhost sources don't use enum, so 990_selfhost / 995_self_rebuild stay green. main.combined.ww in wwdump/ and w6c/ regenerated by `ww build` as a side effect of `make wwstage`.