{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"Cx:"}]}
    Cx: LayoutOf<'tcx, LayoutOfResult = TyAndLayout<'tcx>>
    'tcx,
        + FnAbiOf<'tcx, FnAbiOfResult = &'tcx FnAbi<'tcx, Ty<'tcx>>>