| This tests to make sure that we only alter either | |
| the local arg in a VM, or the global context. | |
| So in foo, we are accessing the global 'b', and | |
| the fact that we were called from bar that has it's | |
| arg of 'b' is irrelevant. | |
| precall $b = 0 | |
| foo : $b = 0 | |
| foo after : $b = 8 | |
| woobie post foo : 4 | |
| bar post woobie : 4 | |
| postcall $b = 8 |