Function rustc_query_impl::make_query::maybe_unused_trait_import

pub fn maybe_unused_trait_import<'tcx>(
    tcx: QueryCtxt<'tcx>, 
    key: maybe_unused_trait_import<'tcx>
) -> QueryStackFrame

[query description - consider adding a doc-comment!] maybe_unused_trait_import for tcx.def_path_str(def_id.to_def_id())