anchor.diff:      }''', {'finishedClassesAccess': finishedClassesAccess,
              'needsMixinSupport': needsMixinSupport,
              'needsNativeSupport': needsNativeSupport,
  -           'nativeInfoHandler': nativeInfoHandler});
  +           'nativeInfoHandler': nativeInfoHandler,
  +           'isObject' : namer.operatorIs(compiler.objectClass) });
     }
   
     void emitFinishIsolateConstructorInvocation(CodeOutput output) {
  
positive.code:             return object;
            };
          }()
        """, { 'operatorIsPrefix' : js.string(namer.operatorIsPrefix),
               'isObject' : namer.operatorIs(compiler.objectClass) });
      if (compiler.hasIncrementalSupport) {
        result = js(
            r'#.inheritFrom = #', [namer.accessIncrementalHelper, result]);
  
negative.code:         function() {
            function tmp() {}
            return function (constructor, superConstructor) {
              tmp.prototype = superConstructor.prototype;
              var object = new tmp();
              var properties = constructor.prototype;
  