syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"ambiguous_block_expr_parse:"}]}
source_snippet:             ambiguous_block_expr_parse: Lock::new(Default::default()),
context_before:             buffered_lints: Lock::new(vec![]),
context_after:             gated_spans: GatedSpans::default(),