Add "paste from unnamed register into 3 cursors" test
Add "paste from unnamed register into 3 cursors" test

tony/vim-multiple-cursors,0hansen/vim-multiple-cursors,jamesblunt/vim-multiple-cursors,terryma/vim-multiple-cursors,martindale/vim-multiple-cursors,rargo/vim-multiple-cursors,roryokane/vim-multiple-cursors