By Elaine Lies and Satoshi Sugiyama TOKYO/NARA, Japan (Reuters) -Japan’s conservative coalition government was projected to increase its majority in the upper house of parliament in an election on Sunday, two days after the assassination of dominant politician and power broker Shinzo Abe. Abe, Japan’s longest-serving modern leader, was gunned down on Friday during a campaign speech in the western city of Nara in a killing that stunned a country where political violence and gun crime are rare. Prime Minister Fumio Kishida’s Liberal Democratic Party (LDP), of which Abe remained an influential la…