Bug 140620 Chart scripting errors are ignored
Write a chart with an invalid script, the execution simply ignores the script. This makes it difficult to debug scripting. The error message is also not precise and needs improvements.
chart/org.eclipse.birt.chart.reportitem/src/org/eclipse/birt/chart/reportitem/ChartReportItemImpl.java
IPropertyType.BOOLEAN_TYPE,
						null,
						null,
						null ),
				new ChartPropertyDefinitionImpl( null,
						"script", "property.script", false, 
						IPropertyType.STRING_TYPE,
						null,
						null,
						null ),
		};
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.extension.IElement#getProperty(java.lang.String)
	 */
	public final Object getProperty( String propName )
	{
		logger.log( ILogger.INFORMATION,
				Messages.getString( "ChartReportItemImpl.log.getProperty", propName ) ); 
		if ( propName.equals( "title.value" ) ) 
		{
			return cm.getTitle( ).getLabel( ).getCaption( ).getValue( );
		}
		else if ( propName.equals( "title.font.rotation" ) ) 
		{
			return new Double( cm.getTitle( )
					.getLabel( )
					.getCaption( )