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/component/ComponentPackage.java
* <!-- end-user-doc -->
		 * @generated
		 */
		EAttribute AXIS__CATEGORY_AXIS = eINSTANCE.getAxis_CategoryAxis( );
		/**
		 * The meta object literal for the '<em><b>Percent</b></em>' attribute feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EAttribute AXIS__PERCENT = eINSTANCE.getAxis_Percent( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.component.impl.ChartPreferencesImpl <em>Chart Preferences</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.component.impl.ChartPreferencesImpl
		 * @see org.eclipse.birt.chart.model.component.impl.ComponentPackageImpl#getChartPreferences()
		 * @generated
		 */
		EClass CHART_PREFERENCES = eINSTANCE.getChartPreferences( );
		/**
		 * The meta object literal for the '<em><b>Labels</b></em>' containment reference list feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference CHART_PREFERENCES__LABELS = eINSTANCE.getChartPreferences_Labels( );
		/**
		 * The meta object literal for the '<em><b>Blocks</b></em>' containment reference list feature.
		 * <!-- begin-user-doc -->