Bug 121273 Script modification of style properties does not work for data item
Create a report with a lable and a data item. In the onCreate method for both items, put this.style.color="red" The label item works, but the data item does not.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/DataEngineImpl.java
Scriptable newSubScope( Scriptable parentScope )
	{
		if ( parentScope == null )
			parentScope = getSharedScope();
		
		Context cx = Context.enter( );
		try
		{
			Scriptable scope = cx.newObject( parentScope );
			scope.setParentScope( parentScope );
			return scope;
		}
		finally
		{
			Context.exit( );
		}
	}
	/**
	 * Provides the definition of a data source to Data Engine. A data source
	 * must be defined using this method prior to preparing any report query
	 * that uses such data source. <br>
	 * Data sources are uniquely identified name. If specified data source has
	 * already been defined, its definition will be updated with the content of
	 * the provided DataSourceDesign
	 */
	public void defineDataSource( IBaseDataSourceDesign dataSource )
			throws DataException
	{
		logger.entering( DataEngineImpl.class.getName( ),
				"defineDataSource",