syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"ExprKind::Block"}]}
source_snippet:             ExprKind::Block { block } => {
context_before:         let (local_decls, rest) = parse_by_kind!(self, rest, _, "body with local decls",
context_after:                 let block = &self.thir[*block];