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/model/data/DataPackage.java
* @see org.eclipse.birt.chart.model.data.impl.SeriesGroupingImpl
	 * @see org.eclipse.birt.chart.model.data.impl.DataPackageImpl#getSeriesGrouping()
	 * @generated
	 */
	int SERIES_GROUPING = 13;
	/**
	 * The feature id for the '<em><b>Enabled</b></em>' attribute. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 * @ordered
	 */
	int SERIES_GROUPING__ENABLED = 0;
	/**
	 * The feature id for the '<em><b>Grouping Unit</b></em>' attribute.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int SERIES_GROUPING__GROUPING_UNIT = 1;
	/**
	 * The feature id for the '<em><b>Grouping Origin</b></em>' containment reference.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int SERIES_GROUPING__GROUPING_ORIGIN = 2;
	/**
	 * The feature id for the '<em><b>Grouping Interval</b></em>' attribute.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->