lsa: stub allocation_section with default allocator
lsa: stub allocation_section with default allocator

memory::stats() always returns 0 as free memory which confuses
guard::enter().

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