anchor.diff:  class X {X.c(); X._d(); z() {}}''');
       addSource('/testA.dart', '''
   library libA;
  -import "/testB.dart";
  +import "${convertPathForImport("/testB.dart")}";
   part "$testFile";
   class A { }
   var m;''');
  
positive.code: }
  ''');
      addTestSource('''
  import '/libA.dart';
  
  class PageState {
    void _incrementCounter() { }
  
negative.code: F1() { }
  class A {int x;}''');
      addTestSource('''
  import "${convertPathForImport("/testA.dart")}";
  int T2;
  F2() { }
  class B {int x;}
  