syntax_data: {"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"return"}]}
source_snippet:                 return Err(SpanSnippetError::MalformedForSourcemap(MalformedSourceMapPositions {
context_before:             if start_index > end_index || end_index > source_len {
context_after:                     name: local_begin.sf.name.clone(),