Add fast traceback utilities (#107358)
This adds some utilities for conveniently working with fast combined CapturedTraceback from Python. The main goal of these utilities is to make it easier for people to use CapturedTraceback as a drop-in replacement for `traceback.extract_stack`, which is 20x slower than CapturedTraceback.
I port symbolic shapes to use the new CapturedTraceback code, to validate that the APIs work and are useful.
Signed-off-by: Edward Z. Yang <ezyang@meta.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107358
Approved by: https://github.com/zdevito, https://github.com/albanD
ghstack dependencies: #107438
