Function rustc_query_impl::make_query::unused_generic_params

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

[query description - consider adding a doc-comment!] determining which generic parameters are unused by tcx.def_path_str(key.def_id())