{"ast_node_type":"variable","tokens":[{"end":56,"kind":"keyword","start":0,"text":"let"}]}
    let alloc = cx.tcx.eval_static_initializer(def_id)?;
) -> Result<(RValue<'gcc>, ConstAllocation<'tcx>), ErrorHandled> {
    Ok((cx.const_data_from_alloc(alloc), alloc))