library;
//
// Problems in library:
//
// pkg/front_end/testcases/nnbd/issue42607.dart:5:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// // @dart = 2.6
// ^^^^^^^^^^^^^^
//
import self as self;
import "dart:core" as core;

static method test() → dynamic {
  core::int* x = 3;
  let final core::int* #t1 = x in #t1 == null ?{core::bool*} null : #t1.{core::int::isEven}{core::bool*};
  x = null;
}
static method main() → dynamic {}