br TOKYO (Reuters) - Asian stocks pulled ahead on Tuesday, led by a bounce in Chinese shares as Beijing signaled more supportive measures to stabilize a slowing economy, while the British pound braced for a showdown in parliament over the government’s Brexit plan. FILE PHOTO: A man looks at an electronic board showing the Nikkei stock index outside a brokerage in Tokyo, Japan, January 7, 2019. REUTERSKim Kyung-Hoon Tokyo's Nikkei .