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.engine/src/org/eclipse/birt/chart/script/ScriptHandler.java
* @deprecated
	 */
	public static final String BEFORE_DRAW_ELEMENT = "beforeDrawElement"; 
	/**
	 * @deprecated
	 */
	public static final String AFTER_DRAW_ELEMENT = "afterDrawElement"; 
	
	
	public static final String BEFORE_DATA_SET_FILLED = "beforeDataSetFilled"; 
	public static final String AFTER_DATA_SET_FILLED = "afterDataSetFilled"; 
	public static final String BEFORE_GENERATION = "beforeGeneration"; 
	public static final String AFTER_GENERATION = "afterGeneration"; 
	public static final String BEFORE_RENDERING = "beforeRendering"; 
	public static final String AFTER_RENDERING = "afterRendering"; 
	public static final String BEFORE_DRAW_BLOCK = "beforeDrawBlock"; 
	public static final String AFTER_DRAW_BLOCK = "afterDrawBlock"; 
	public static final String BEFORE_DRAW_LEGEND_ENTRY = "beforeDrawLegendEntry"; 
	public static final String AFTER_DRAW_LEGEND_ENTRY = "afterDrawLegendEntry"; 
	public static final String BEFORE_DRAW_SERIES = "beforeDrawSeries"; 
	public static final String AFTER_DRAW_SERIES = "afterDrawSeries"; 
	public static final String BEFORE_DRAW_SERIES_TITLE = "beforeDrawSeriesTitle"; 
	public static final String AFTER_DRAW_SERIES_TITLE = "afterDrawSeriesTitle"; 
	public static final String BEFORE_DRAW_MARKER_LINE = "beforeDrawMarkerLine"; 
	public static final String AFTER_DRAW_MARKER_LINE = "afterDrawMarkerLine"; 
	public static final String BEFORE_DRAW_MARKER_RANGE = "beforeDrawMarkerRange"; 
	public static final String AFTER_DRAW_MARKER_RANGE = "afterDrawMarkerRange"; 
	public static final String BEFORE_DRAW_DATA_POINT = "beforeDrawDataPoint"; 
	public static final String AFTER_DRAW_DATA_POINT = "afterDrawDataPoint"; 
	public static final String BEFORE_DRAW_DATA_POINT_LABEL = "beforeDrawDataPointLabel";