{"ast_node_type":"variable","tokens":[{"end":80,"kind":"keyword","start":0,"text":"let"}]}
                    let lsb = fx.bcx.ins().iconst(types::I64, to as u64 as i64);
                ty::Uint(UintTy::U128) | ty::Int(IntTy::I128) => {
                    let msb = fx.bcx.ins().iconst(types::I64, (to >> 64) as u64 as i64);