Hojun-Cho
125f626697
An enum OR-fold under `as` ((m.A|m.B) as u32) was never typed: scruttype resolves IDENT/DOT only, and the post-order restamp then re-derived the folded member literals as untyped_int. The unstamped operand missed cgtypeassert's #27b enum-reinterpret gate and lowered as a phantom tagged assert — unconditional exit 1 at runtime on the wwstage leg. checkisas now types an N_BIN lhs and the N_BIN restamp preserves an existing enum stamp. Graduates the #59.9 stattest pin.