Bug 209309 Show javascript errorposition
If a javascript expression has errors, the error message is shown in the last lines in the preview tab. But there is no info where the error occurs. In most cases you had to guess the error location. It would be very helpfull to display the error location.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
{
		/**
		 * get the report design handle
		 * 
		 * @return report design object.
		 */
		public Object getDesign( )
		{
			return scriptContext.eval( "design" );
		}
		/**
		 * get the report document.
		 * 
		 * @return report document.
		 */
		public Object getDocument( )
		{
			return reportDoc;