syntax_data: {"ast_node_type":"other","tokens":[{"end":9,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:         }
context_before:             trunc(if neg { (n.get() as i128).overflowing_neg().0 as u128 } else { n.get() })
context_after:         (ast::LitKind::Float(n, _), ty::Float(fty)) => {