anchor.diff:  
     int numTypesMadeNullable = 0;
   
  +  int numVariablesMarkedLate = 0;
  +
  +  int numInsertedCasts = 0;
  +
  +  int numInsertedParenthesis = 0;
  +
     int numNullChecksAdded = 0;
   
     int numMetaImportsAdded = 0;
  
positive.code:       'SDK at ${sdk.sdkPath} not compiled with --nnbd, use --sdk option');
  }
  
  class _Listener implements NullabilityMigrationListener {
    /// Set this to `true` to cause just the exception nodes to be printed when
    /// `_Listener.categoryOfInterest` is non-null.  Set this to `false` to cause
  
negative.code:   int numRequiredAnnotationsAdded = 0;
  
    int numDeadCodeSegmentsFound = 0;
  
    int numOtherEdits = 0;
  
    String currentPackage;
  
  