library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/nnbd/mutual_subtype_norm.dart:21:16: Error: Can't return a value from a void function.
//     return new Future<Null>.value(null); // error
//                ^
//
// pkg/front_end/testcases/nnbd/mutual_subtype_norm.dart:25:16: Error: Can't return a value from a void function.
//     return new Future<Null>.value(null); // error
//                ^
//
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

import "dart:async";

class A extends core::Object {
  synthetic constructor •() → self::A
    : super core::Object::•()
    ;
  method method1() → void {}
  method method2() → FutureOr<void> {}
  method method3() → FutureOr<void> {}
}
class B extends core::Object {
  synthetic constructor •() → self::B
    : super core::Object::•()
    ;
  method method1() → void {}
  method method2() → void {}
  method method3() → FutureOr<void> {}
}
class C extends core::Object implements self::A, self::B {
  synthetic constructor •() → self::C
    : super core::Object::•()
    ;
  method method1() → void {
    return invalid-expression "pkg/front_end/testcases/nnbd/mutual_subtype_norm.dart:21:16: Error: Can't return a value from a void function.
    return new Future<Null>.value(null); // error
               ^" in asy::Future::value<Null>(null);
  }
  method method2() → void {
    return invalid-expression "pkg/front_end/testcases/nnbd/mutual_subtype_norm.dart:25:16: Error: Can't return a value from a void function.
    return new Future<Null>.value(null); // error
               ^" in asy::Future::value<Null>(null);
  }
  method method3() → FutureOr<void> {
    return asy::Future::value<Null>(null);
  }
}
static method main() → dynamic {}