Support printing inplace operators in FX (#71887)
Summary:
Pretty print inplace operators (`a+=b`, etc) in generated FX code. This is useful because it allows `torch.jit.script()` to parse these operators without error.
I don't believe FX tracing supports inplace ops yet, though I am generating them in torchdynamo and want to be able to lower them with torchscript.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71887
Reviewed By: jamesr66a
Differential Revision: D33806248
Pulled By: jansel
fbshipit-source-id: 5eb9f744caab2f745cefc83ea658e12e9e7a817d
(cherry picked from commit eacbd6bb83571f9e58d84243aeed277e7a4f1fe5)
