library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/general/issue45700.crash_dart:5:12: Error: Can't use a function type as supertype.
// mixin M on Function() {}
//            ^
//
import self as self;
import "dart:core" as core;

abstract class M extends core::Object /*isMixinDeclaration*/  {
}
static method main() → void
  ;