syntax_data: {"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"source_map:"}]}
source_snippet:             source_map: sm_inputs.map(|inputs| Arc::new(SourceMap::with_inputs(inputs))),
context_before:             hygiene_data: Lock::new(hygiene::HygieneData::new(edition)),
context_after:         }