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
* The meta object id for the '{@link org.eclipse.birt.chart.model.component.impl.ScaleImpl <em>Scale</em>}' class.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @see org.eclipse.birt.chart.model.component.impl.ScaleImpl
	 * @see org.eclipse.birt.chart.model.component.impl.ComponentPackageImpl#getScale()
	 * @generated
	 */
	int SCALE = 10;
	/**
	 * The feature id for the '<em><b>Min</b></em>' containment reference.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int SCALE__MIN = 0;
	/**
	 * The feature id for the '<em><b>Max</b></em>' containment reference.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int SCALE__MAX = 1;
	/**
	 * The feature id for the '<em><b>Step</b></em>' attribute. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 * @ordered
	 */
	int SCALE__STEP = 2;
	/**