anchor.diff:    main() { new A(); }
   """;
   
  -const String TEST_3 = @"""
  +const String TEST_3 = r"""
     class A {
       int f1;
       int f2;
  
positive.code:   }
  """;
  
  const String TEST_9 = @"""
    class A {
      int f;
      A(x) {
  
negative.code: """;
  
  
  const String TEST_11 = r"""
    class S {
      int fs = 1;
      ms() { fs = 1; }
  