anchor.diff:      lineInfo = node.lineInfo;
     }
   
  -  static int noMethods = 0;
  -  static int totalClasses = 0;
  +//  static int noMethods = 0;
  +//  static int totalClasses = 0;
   
     bool _isOverridingMember(Element member) {
       if (member == null) {
  
positive.code:   }
  }
  
  // todo (pq): for experiments and book-keeping; remove before landing
  int fileCount = 0;
  int debugPropertyCount = 0;
  int classesWithPropertiesButNoDebugFill = 0;
  
  class _Visitor extends SimpleAstVisitor {
    final LintRule rule;
  
negative.code: 
    @override
    visitClassDeclaration(ClassDeclaration node) {
  //    ++totalClasses;
  
      // We only care about Diagnosticables.
      var type = node.declaredElement.type;
  