[TensorExpr] Re-enable test for torch.cat, add a test for torch.cat being a single node in a fusion group. (#46447)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/46447
Test Plan: Imported from OSS
Reviewed By: ngimel
Differential Revision: D24356017
Pulled By: ZolotukhinM
fbshipit-source-id: 847c1d9c4f0f77f53ea3412a5663d486e78bccad
Author
Mikhail Zolotukhin
