support any expr can be a statement
support any expr can be a statement

git-svn-id: https://svn.sable.mcgill.ca/mclab/Project@155 89b902b4-d83f-0410-b942-89f7a419ffdb

Migrated from Sable/mclab@a299f91ba41c185a80ca0b1c66f33580f2c4eb36

Sable/mclab-core,Sable/mclab-core,Sable/mclab-core,Sable/mclab-core,Sable/mclab-core,Sable/mclab-core,Sable/mclab-core,Sable/mclab-core