syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"DefKind::Struct"}]}
source_snippet:         DefKind::Struct | DefKind::Union | DefKind::Enum => {
context_before:         // Look at field types
context_after:             let span = tcx.def_ident_span(item).unwrap();