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/impl/DataPackageImpl.java
initEClass( actionEClass,
				Action.class,
				"Action", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEAttribute( getAction_Type( ),
				theAttributePackage.getActionType( ),
				"type", "URL_Redirect", 1, 1, Action.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEReference( getAction_Value( ),
				theAttributePackage.getActionValue( ),
				null,
				"value", null, 1, 1, Action.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, !IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEClass( baseSampleDataEClass,
				BaseSampleData.class,
				"BaseSampleData", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEAttribute( getBaseSampleData_DataSetRepresentation( ),
				theXMLTypePackage.getString( ),
				"dataSetRepresentation", null, 1, 1, BaseSampleData.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEClass( dataElementEClass,
				DataElement.class,
				"DataElement", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEClass( dataSetEClass,
				DataSet.class,
				"DataSet", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEAttribute( getDataSet_Values( ),
				theXMLTypePackage.getAnySimpleType( ),
				"values", null, 1, 1, DataSet.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEClass( dateTimeDataElementEClass,
				DateTimeDataElement.class,
				"DateTimeDataElement", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEAttribute( getDateTimeDataElement_Value( ),
				theXMLTypePackage.getLong( ),