atomic_cell_or_collection: add operator==()
atomic_cell_or_collection: add operator==()

Signed-off-by: Paweł Dziepak <e29bb3265626c60caf76d587cabdfcd8b379ef80@cloudius-systems.com>

phonkee/scylla,justintung/scylla,shaunstanislaus/scylla,gwicke/scylla,linearregression/scylla,raphaelsc/scylla,respu/scylla,dwdm/scylla,kjniemi/scylla,capturePointer/scylla,kangkot/scylla,justintung/scylla,dwdm/scylla,rluta/scylla,eklitzke/scylla,gwicke/scylla,senseb/scylla,linearregression/scylla,rluta/scylla,duarten/scylla,aruanruan/scylla,bowlofstew/scylla,duarten/scylla,glommer/scylla,tempbottle/scylla,asias/scylla,acbellini/scylla,kangkot/scylla,bowlofstew/scylla,shaunstanislaus/scylla,respu/scylla,guiquanz/scylla,gwicke/scylla,senseb/scylla,kjniemi/scylla,kangkot/scylla,glommer/scylla,stamhe/scylla,bowlofstew/scylla,rentongzhang/scylla,guiquanz/scylla,scylladb/scylla,guiquanz/scylla,rluta/scylla,rentongzhang/scylla,glommer/scylla,victorbriz/scylla,victorbriz/scylla,scylladb/scylla,victorbriz/scylla,avikivity/scylla,eklitzke/scylla,aruanruan/scylla,scylladb/scylla,capturePointer/scylla,linearregression/scylla,capturePointer/scylla,respu/scylla,phonkee/scylla,rentongzhang/scylla,asias/scylla,tempbottle/scylla,eklitzke/scylla,asias/scylla,stamhe/scylla,acbellini/scylla,acbellini/scylla,aruanruan/scylla,tempbottle/scylla,dwdm/scylla,raphaelsc/scylla,stamhe/scylla,avikivity/scylla,raphaelsc/scylla,wildinto/scylla,duarten/scylla,justintung/scylla,shaunstanislaus/scylla,senseb/scylla,kjniemi/scylla,scylladb/scylla,wildinto/scylla,phonkee/scylla,avikivity/scylla,wildinto/scylla