Hojun-Cho
00b9933ee0
The value-passthrough arm gated on node shape (isenumexpr); a constant-folded enum member reaches cgen as an int-literal node, missed the arm, and fell into the tagged-union assertion path (CMPQ $0 + JNE -> exit 1) — silent wrong code for every `enum as int`, fnmatch's flag tests included. Gate on the stamped operand type (tichase == TY_ENUM) at the cgtypeassert choke point, mirroring cstage cgen.c N_TYPEASSERT; dead node-shape helpers deleted. Tagged `as` assertion path byte-id-unmoved (control rows). Six @test pins in attest_pass.ww, dual-stage. (#27b-team, cat-A)