Do not visit slots in the top-level code generator's backend....

Do not visit slots in the top-level code generator's backend.

Slots appear only indirectly in the AST (through variables linked to
variable proxies).  Slots are shared among variable references, so
putting compilation-time state on them is potentially a source of
bugs.  Avoid it for now.


Committed: http://code.google.com/p/v8/source/detail?r=3079

[fschneider, 2009-10-16 09:40:35]

LGTM.