Include exception type qualname when rewrapping InternalTorchDynamoError

[ezyang]

Stack from ghstack (oldest at bottom):

• Report qualname of exception type rather than <class 'RuntimeError'> #135146
• -> Include exception type qualname when rewrapping InternalTorchDynamoError #135145
• Consolidate raise and rewrap raise error branches #135148

Signed-off-by: Edward Z. Yang ezyang@meta.com

cc @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @chenyang78 @kadeng @chauhang @amjames @rec

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/135145

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✅ You can merge normally! (1 Unrelated Failure)

As of commit 50a0bb2 with merge base 09a339f ():

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• pull / linux-focal-py3.9-clang10 / test (dynamo, 2, 3, linux.2xlarge) (gh) (disabled by #134602)
  test_transformers.py::TestSDPAPrivateUse1Only::test_scaled_dot_product_fused_attention_overrideable_backward

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