Brummel
c8ecfa39b9
Two RED E2E tests that pin the byte-faithful-print property of io/print_str. Both fail today because the codegen at crates/ailang-codegen/src/lib.rs:2754 lowers the op to a C `@puts` call, which writes the string plus a trailing newline. - io_print_str_does_not_append_auto_newline: (seq (do io/print_str "a") (do io/print_str "b")) → stdout "ab" current: "a\nb\n" - io_print_str_does_not_double_embedded_newline: (do io/print_str "x\n") → stdout "x\n" current: "x\n\n" Assertions compare RAW stdout (no .trim()) — the byte-level property IS the assertion target. Empirically caught in the cross-model-authoring naming-A/B run on 2026-05-21 (experiments/2026-05-21-naming-ab/runs/r1/): Qwen3- Coder repeatedly wrote `(do io/print_str "text\n")` with explicit \n, expecting byte-faithful output, and got doubled newlines — failing every t3_main_prints stdout match across all three cohorts. GREEN side (codegen swap @puts → fputs(s, @stdout) + sweep of existing fixtures that implicitly relied on the auto-newline) is the next commit, via implement mini-mode. refs #29