Turn on anomaly detection for AOTAutograd backward tracing (#101047)
Previously, anomaly detection was only enabled on the inner forward function, and not on the overall joint function that calls backward. I believe this impeded us from printing "this is the forward that triggered the backward" because that printing only happens if anomaly mode is enabled when you run backward(). This PR fixes it.
Signed-off-by: Edward Z. Yang <ezyang@meta.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/101047
Approved by: https://github.com/albanD, https://github.com/bdhirsh
