Bug 210496 Add hasStyle property in reportItemModel extension point
When chart gets reportItem's properties by extending ReportItem, style properties are null. Hence, model needs to add hasStyle property in reportItemModel extension point
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/extension/ReportItemExtensionTest.java
}
	/**
	 * Tests the function of TestPeerElement and ExtendedItem to get/set
	 * property.
	 * 
	 * @throws Exception
	 */
	public void testExtension( ) throws Exception
	{
		openDesign( fileName );
		ExtendedItemHandle extendedHandle = (ExtendedItemHandle) designHandle
				.findElement( "right extended item" ); 
		assertNotNull( extendedHandle );
		try
		{
			extendedHandle.setProperty( ExtendedItem.EXTENSION_NAME_PROP,
					"TestingMatrix" ); 
			fail( );
		}
		catch ( PropertyValueException e )
		{
			assertEquals(
					PropertyValueException.DESIGN_EXCEPTION_EXTENSION_SETTING_FORBIDDEN,
					e.getErrorCode( ) );
		}
		
		assertNotNull( ( (ExtendedItem) extendedHandle.getElement( ) )
				.getExtendedElement( ) );