{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":".instantiate(*ecx.tcx,"}]}
        .instantiate(*ecx.tcx, ecx.tcx.mk_args(&[ecx.tcx.lifetimes.re_erased.into()]));
        .type_of(ecx.tcx.require_lang_item(LangItem::PanicLocation, ecx.tcx.span))
    let loc_layout = ecx.layout_of(loc_ty).unwrap();