fn visit_mentioned_item<'tcx>(
    tcx: TyCtxt<'tcx>,
    item: &MentionedItem<'tcx>,
    span: Span,
    output: &mut MonoItems<'tcx>,
)Expand description
item must be already monomorphized.
fn visit_mentioned_item<'tcx>(
    tcx: TyCtxt<'tcx>,
    item: &MentionedItem<'tcx>,
    span: Span,
    output: &mut MonoItems<'tcx>,
)item must be already monomorphized.