protected override void AppendTooltip(CannotHaveEventAccessorsInInterfacesError highlighting, CSharpColorizer colorizer)
 {
     colorizer.AppendPlainText("Event in interface cannot have ");
     colorizer.AppendAccessorName("add");
     colorizer.AppendPlainText(" or ");
     colorizer.AppendAccessorName("remove");
     colorizer.AppendPlainText(" accessors");
 }
 protected override void AppendTooltip(CannotHaveEventAccessorsInAbstractEventError highlighting, CSharpColorizer colorizer)
 {
     colorizer.AppendPlainText("Abstract event cannot have ");
     colorizer.AppendAccessorName("add");
     colorizer.AppendPlainText(" or ");
     colorizer.AppendAccessorName("remove");
     colorizer.AppendPlainText(" accessors");
 }