Add knobs for globally turning off 0/1 specialization and duck shaping (#95352)
They're not wired up to anything right now but the most logical wiring
would be to add torch._dynamo.config to toggle them.
Signed-off-by: Edward Z. Yang <ezyang@meta.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/95352
Approved by: https://github.com/voznesenskym
