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
assertEquals( 1, list.size( ) );
		int i = 0;
		assertEquals( SemanticError.DESIGN_EXCEPTION_MISSING_EXTENSION,
				( (ErrorDetail) list.get( i++ ) ).getErrorCode( ) );
		ExtendedItemHandle itemHandle = (ExtendedItemHandle) designHandle
				.findElement( "right extended item" ); 
		
		try
		{
			itemHandle.getReportItem( );
			fail( );
		}
		catch ( ExtendedElementException e )
		{
			assertEquals( SemanticError.DESIGN_EXCEPTION_MISSING_EXTENSION, e
					.getErrorCode( ) );
		}
		testExtendedItemWithoutExtension( itemHandle );
	}
	/**
	 * Returns a new extended item handle, which is inserted into body.
	 * 
	 * @param name
	 *            the element name
	 * @param extensionName
	 *            the extension name
	 * @return the new extended item handle
	 * @throws Exception
	 *             if any exception
	 */