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.swt/src/org/eclipse/birt/chart/device/swt/SwtRendererImpl.java
iLineStyle = SWT.LINE_DOT;
				break;
			case LineStyle.DASH_DOTTED :
				iLineStyle = SWT.LINE_DASHDOT;
				break;
			case LineStyle.DASHED :
				iLineStyle = SWT.LINE_DASH;
				break;
		}
		_gc.setLineStyle( iLineStyle );
		_gc.setLineWidth( lia.getThickness( ) );
		_gc.setForeground( cFG );
		R31Enhance.setAlpha( _gc, lia.getColor( ) );
		drawArc( _gc,
				( (SwtDisplayServer) _ids ).getDevice( ),
				are,
				dTranslateX,
				dTranslateY,
				dScale );
		_gc.setLineStyle( iOldLineStyle );
		_gc.setLineWidth( iOldLineWidth );
		cFG.dispose( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.event.IPrimitiveRenderer#fillArc(org.eclipse.birt.chart.event.ArcRenderEvent)
	 */
	public void fillArc( ArcRenderEvent are ) throws ChartException
	{