anchor.diff:  F1() => 0;
   typedef String T1(int blat);''');
       addTestSource('''
  -import "/testA.dart";'
  +import "${convertPathForImport("/testA.dart")}";'
   class C2 {int x;}
   F2() => 0;
   typedef int T2(int blat);
  
positive.code: F1() { }
  class A {int x;}''');
      addTestSource('''
  import "/testA.dart";
  int T2;
  F2() { }
  class B {int x;}
  
negative.code: bool hasLength(int expected) { }
  void baz() { }''');
      addTestSource('''
  import "${convertPathForImport('/libA.dart')}"
  expect(arg) { }
  class B { }
  String bar() => true;
  