By Sruthi Shankar and Shreyashi Sanyal (Reuters) -European stocks closed at over two-week highs on Wednesday after fresh talks of compromise from Russia and Ukraine boosted gains spurred by China’s promise to roll out more economic stimulus. Moscow and Kyiv discussed a status for Ukraine outside of NATO, lifting hopes for a breakthrough after three weeks of war. The pan-European STOXX 600 index closed up 3.1%, at its highest level since Feb. 28. Markets also climbed after China’s Vice Premier Liu He said Beijing would roll out more measures to boost the Chinese economy as well as favourable po…