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 CURVE_FITTING__LABEL_ANCHOR = eINSTANCE.getCurveFitting_LabelAnchor( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.component.impl.DialImpl <em>Dial</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.component.impl.DialImpl
		 * @see org.eclipse.birt.chart.model.component.impl.ComponentPackageImpl#getDial()
		 * @generated
		 */
		EClass DIAL = eINSTANCE.getDial( );
		/**
		 * The meta object literal for the '<em><b>Start Angle</b></em>' attribute feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EAttribute DIAL__START_ANGLE = eINSTANCE.getDial_StartAngle( );
		/**
		 * The meta object literal for the '<em><b>Stop Angle</b></em>' attribute feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EAttribute DIAL__STOP_ANGLE = eINSTANCE.getDial_StopAngle( );
		/**
		 * The meta object literal for the '<em><b>Radius</b></em>' attribute feature.
		 * <!-- begin-user-doc -->