Update to roslyn 2.7.0-beta3-62612-07 for 2.1.1xx
Update to roslyn 2.7.0-beta3-62612-07 for 2.1.1xx

svick/cli,dasMulli/cli,dasMulli/cli,livarcocc/cli-1,johnbeisner/cli,livarcocc/cli-1,svick/cli,livarcocc/cli-1,dasMulli/cli,johnbeisner/cli,svick/cli,johnbeisner/cli