Get Alien marshalling loop correct for stack-grows-down Cog/Stack VMs.
Get Alien marshalling loop correct for stack-grows-down Cog/Stack VMs.


git-svn-id: http://squeakvm.org/svn/squeak/trunk@2442 fa1542d4-bde8-0310-ad64-8ed1123d492a

Former-commit-id: 530e59ab4f434aae22948ea0c32e88abbe48527d
bencoman/pharo-vm,timfel/squeakvm,bencoman/pharo-vm,peteruhnak/pharo-vm,bencoman/pharo-vm,OpenSmalltalk/vm,peteruhnak/pharo-vm,bencoman/pharo-vm,timfel/squeakvm,peteruhnak/pharo-vm,timfel/squeakvm,timfel/squeakvm,peteruhnak/pharo-vm,bencoman/pharo-vm,peteruhnak/pharo-vm,OpenSmalltalk/vm,timfel/squeakvm,timfel/squeakvm,bencoman/pharo-vm,OpenSmalltalk/vm,timfel/squeakvm,peteruhnak/pharo-vm,OpenSmalltalk/vm,peteruhnak/pharo-vm,bencoman/pharo-vm,peteruhnak/pharo-vm,OpenSmalltalk/vm,OpenSmalltalk/vm,OpenSmalltalk/vm,OpenSmalltalk/vm,bencoman/pharo-vm,timfel/squeakvm,bencoman/pharo-vm