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
}
	/**
	 * execute the script. simply evaluate the script, and drop the return value
	 * 
	 * @param script
	 *            script to be executed
	 */
	public void execute( String script )
	{
		if ( script != null )
		{
			evaluate( script );
		}
	}	
	/**
	 * execute the script. Simply evaluate the script, then drop the return
	 * value
	 * 
	 * @param script
	 *            script statement
	 * @param fileName
	 *            file name
	 * @param lineNo
	 *            line no
	 */
	public void execute( String script, String fileName, int lineNo )
	{
		if ( script != null )
		{
			evaluate( script, fileName, lineNo );