anchor.diff:  
         'call0selector': js.quoteName(call0Name),
         'call1selector': js.quoteName(call1Name),
  -      'call2selector': js.quoteName(call2Name),
  -      'legacyJavaScript': _options.legacyJavaScript
  +      'call2selector': js.quoteName(call2Name)
       });
       if (program.hasSoftDeferredClasses) {
         mainCode = js.Block([
  
positive.code: // proto-property of the classes 'prototype' field.
  // Older IEs use `Object.create` and copy over the properties.
  function inherit(cls, sup) {
    // Note that RTI needs cls.name, but we don't need to set it anymore.
    if (#legacyJavaScript) {
      cls.prototype.constructor = cls;
    }
    cls.prototype[#operatorIsPrefix + cls.name] = cls;
  
    // The superclass is only null for the Dart Object.
  
negative.code:         properties
              .add(js.Property(js.string("constructor"), classReference(cls)));
        }
        properties.add(js.Property(_namer.operatorIs(cls.element), js.number(1)));
      }
  
  