CLI contract (stdout/stderr/exit codes/JSON field order) unchanged —
the e2e diff/manifest/describe cases plus the staticlib/emit-ir/
roundtrip CLI tests are green.
- locate_bump_runtime / locate_rc_runtime / locate_str_runtime were
three copies of the same upward runtime/<file> walk; folded into
locate_runtime_file(filename, err_msg) with each error string passed
through verbatim.
- describe built the same single-def Module wrapper in both branches;
hoisted into wrap_single_def.
- manifest built the same per-symbol JSON object in two branches
(workspace adds a leading "module" field); hoisted into
manifest_def_json(def, Option<module>), field insertion order
preserved (serde_json preserve_order).
Left duplicated by design: the build_to/build_staticlib elaborate-or-
exit blocks (a shared helper would have to name a MIR type from a crate
ail does not depend on) and the Diff handler's two-report branches (a
generic output router was out of scope and no cleaner).
Brummel
72503c40fe