syntax_data: {"ast_node_type":"function","tokens":[{"end":78,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn print_adt_def(&mut self, adt_def: ty::AdtDef<'tcx>, depth_lvl: usize) {
context_after:         print_indented!(self, "AdtDef {", depth_lvl);