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
{
			javahandler.afterDrawSeries( (Series) tmpArgs[0],
					(ISeriesRenderer) tmpArgs[1],
					(IChartScriptContext) tmpArgs[2] );
		}
		else if ( ScriptHandler.BEFORE_DRAW_SERIES_TITLE.equals( name ) )
		{
			javahandler.beforeDrawSeriesTitle( (Series) tmpArgs[0],
					(Label) tmpArgs[1],
					(IChartScriptContext) tmpArgs[2] );
		}
		else if ( ScriptHandler.AFTER_DRAW_SERIES_TITLE.equals( name ) )
		{
			javahandler.afterDrawSeriesTitle( (Series) tmpArgs[0],
					(Label) tmpArgs[1],
					(IChartScriptContext) tmpArgs[2] );
		}
		else if ( ScriptHandler.BEFORE_DRAW_MARKER_LINE.equals( name ) )
		{
			javahandler.beforeDrawMarkerLine( (Axis) tmpArgs[0],
					(MarkerLine) tmpArgs[1],
					(IChartScriptContext) tmpArgs[2] );
		}
		else if ( ScriptHandler.AFTER_DRAW_MARKER_LINE.equals( name ) )
		{
			javahandler.afterDrawMarkerLine( (Axis) tmpArgs[0],
					(MarkerLine) tmpArgs[1],
					(IChartScriptContext) tmpArgs[2] );
		}
		else if ( ScriptHandler.BEFORE_DRAW_MARKER_RANGE.equals( name ) )