anchor.diff:     */
     LibraryMirror get library => null;
   
  -  bool get isObject => false;
  -
     bool get isVoid => true;
  -
  -  bool get isDynamic => false;
  -
  -  bool get isTypeVariable => false;
  -
  -  bool get isTypedef => false;
  -
  -  bool get isFunction => false;
   
     bool operator ==(Object other) {
       if (this === other) {
  
positive.code:       return false;
      }
      return other.isVoid;
    }
  }
  
  
negative.code: #import('../../../../../lib/compiler/implementation/elements/elements.dart');
  #import('../../../../../lib/compiler/implementation/apiimpl.dart', prefix: 'api');
  #import('../../../../../lib/compiler/implementation/scanner/scannerlib.dart');
  #import('../../../../../lib/compiler/implementation/ssa/ssa.dart');
  #import('../../../../../lib/compiler/implementation/leg.dart');
  #import('../../../../../lib/compiler/implementation/filenames.dart');
  #import('../../../../../lib/compiler/implementation/source_file.dart');
  