syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"print_indented!(self,"}]}
source_snippet:         print_indented!(self, "field_types: [", depth_lvl + 1);
context_before:         self.print_expr(fru_info.base, depth_lvl + 2);
context_after:         for ty in fru_info.field_types.iter() {