syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"tracing::info!(\"couldn't"}]}
source_snippet:                 tracing::info!("couldn't find line {line} {:?}", self.name);
context_before:                 // both displaying *and* third party tools using the json output naïvely.
context_after:                 return (line, col_or_chpos, col_or_chpos.0);