syntax_data: {"ast_node_type":"variable","tokens":[{"end":71,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let get_ty_for_size = |tcx: TyCtxt<'tcx>, size: Size| -> Ty<'tcx> {
context_before: ) -> Place<'tcx> {
context_after:         match size.bytes() {