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.device.extension/src/org/eclipse/birt/chart/device/swing/ShapedAction.java
{
	private final StructureSource _oSource;
	private final Shape _sh;
	private final Action _ac;
	/**
	 * This constructor supports polygon shapes Future shapes (and corresponding
	 * constructors) will be added later
	 * 
	 * @param loa
	 * @param ac
	 */
	ShapedAction( StructureSource oSource, Location[] loa, Action ac, Shape clipping )