fn upstream_monomorphizations_provider(
tcx: TyCtxt<'_>,
(): ()
) -> DefIdMap<FxHashMap<GenericArgsRef<'_>, CrateNum>>fn upstream_monomorphizations_provider(
tcx: TyCtxt<'_>,
(): ()
) -> DefIdMap<FxHashMap<GenericArgsRef<'_>, CrateNum>>