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
+ " *            Axis\n" 
			+ " * @param label\n" 
			+ " *            Label\n" 
			+ " * @param context\n" 
			+ " *            IChartScriptContext\n" 
			+ " */\n" 
			+ "//function beforeDrawAxisLabel( axis, label, context ){}\n" 
			+ "\n" 
			+ "/**\n" 
			+ " * Called before rendering the Title of an Axis.\n" 
			+ " * \n" 
			+ " * @param axis\n" 
			+ " *            Axis\n" 
			+ " * @param label\n" 
			+ " *            Title Label\n" 
			+ " * @param context\n" 
			+ " *            IChartScriptContext\n" 
			+ " */\n" 
			+ "//function beforeDrawAxisTitle( axis, label, context ){}\n"; 
	/**
	 * @deprecated
	 */
	public static final String START_GENERATION = "startGeneration"; 
	/**
	 * @deprecated
	 */
	public static final String FINISH_GENERATION = "finishGeneration"; 
	/**
	 * @deprecated
	 */