anchor.diff:    test_override_conflictFieldType() async {
       await assertErrorsInCode('''
   abstract class A {
  -  int aaa;
  +  int aaa = 0;
   }
   abstract class B {
  -  String aaa;
  +  String aaa = '0';
   }
   class C implements A, B {
     var aaa;
   }
   ''', [
  -      error(CompileTimeErrorCode.INVALID_OVERRIDE, 99, 3),
  -      error(CompileTimeErrorCode.INVALID_OVERRIDE, 99, 3),
  +      error(CompileTimeErrorCode.INVALID_OVERRIDE, 109, 3),
  +      error(CompileTimeErrorCode.INVALID_OVERRIDE, 109, 3),
       ]);
     }
   
  
positive.code:   }
  
    test_method_OK_single_private_linkThroughOtherLibraryOfCycle() async {
      newFile('/test/lib/other.dart', content: r'''
  import 'test.dart';
  class B extends A2 {}
  ''');
  
negative.code:   }
  
    test_initializer_extractProperty_implicitlyTyped_differentLibraryCycle() async {
      newFile('$testPackageLibPath/a.dart', content: r'''
  class C {
    var f = 0;
  }
  