Respect TORCH_DISABLE_ADDR2LINE in symbolizer (#121359)
If TORCH_DISABLE_ADDR2LINE is set, the symbolizer will instead give the
filename of the shared library as the filename, the offset in that library as the linenumber,
and use dladdr to get the function name if possible. This is much faster than using addr2line,
and the symbols can be later resolved offline using addr2line if desired.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/121359
Approved by: https://github.com/aaronenyeshi
