     import flash.text.engine.TextBlock;
     import flash.text.engine.TextElement;
     import flash.text.engine.TextLine;
+    import flash.text.engine.TextLineValidity;
     import flash.utils.Dictionary;
     
     import flashx.textLayout.compose.ISWFContext;

    
    import mx.managers.SystemManager;
    import mx.managers.SystemManagerGlobals;
    
    use namespace mx_internal;
    

                // to be the fastest way to remove all children.
                var textLine:TextLine = TextLine(removeChildAt(nextLineIndex));
                
                TextUtil.recycleTextLine(textLine);
            }
        }
        
