Add test cases for camel case and underscore textobjects
Add test cases for camel case and underscore textobjects

teemobean/XVim,teemobean/XVim,teemobean/XVim,N4tr0n/XVim,dengcqw/XVim_x,pebble8888/XVim,antmd/XVim,hyperspacemark/XVim,antmd/XVim,N4tr0n/XVim,XVimProject/XVim,dengcqw/XVim_x,raimon49/XVim,ishkawa/XVim,brucehappy/XVim,antmd/XVim,ishkawa/XVim,tanxxjun321/XVim,hyperspacemark/XVim,pebble8888/XVim,squarefrog/XVim,antmd/XVim,dengcqw/XVim_x,tanxxjun321/XVim,squarefrog/XVim,hyperspacemark/XVim,raimon49/XVim,raimon49/XVim,brucehappy/XVim,squarefrog/XVim,gecko655/XVim,hyperspacemark/XVim,XVimProject/XVim,N4tr0n/XVim,tanxxjun321/XVim,gecko655/XVim,squarefrog/XVim,XVimProject/XVim,ishkawa/XVim,tanxxjun321/XVim,teemobean/XVim,XVimProject/XVim,pebble8888/XVim,brucehappy/XVim,brucehappy/XVim,dengcqw/XVim_x,N4tr0n/XVim,gecko655/XVim,ishkawa/XVim,gecko655/XVim,pebble8888/XVim,raimon49/XVim