{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"float:"}]}
                float: l_span.shrink_to_hi(),
                nan_plus_binop: l_span.shrink_to_hi().to(r_span),
                neg: (binop == hir::BinOpKind::Ne).then(|| l_span.shrink_to_lo()),