syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"print_indented!(self,"}]}
source_snippet:                 print_indented!(self, "closure_expr:", depth_lvl + 1);
context_before:                 print_indented!(self, "Closure {", depth_lvl);
context_after:                 self.print_closure_expr(&**closure_expr, depth_lvl + 2);