{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"cov_mark::hit!(expected_type_match_arm_without_leading_char);"}]}
                        cov_mark::hit!(expected_type_match_arm_without_leading_char);
                        // match foo { $0 }
                        it.expr().and_then(|e| sema.type_of_expr(&e))