syntax_data: {"ast_node_type":"variable","tokens":[{"end":94,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let build_variant_info = |n: Option<Symbol>, flds: &[Symbol], layout: TyAndLayout<'tcx>| {
context_before: ) -> (Vec<VariantInfo>, Option<Size>) {
context_after:         let mut min_size = Size::ZERO;