Renames `tensor.renamed -> rename`, `tensor.names_ -> rename_` (#26548)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/26548
This makes the naming more consistent with PyTorch's API. The original
concern was that `tensor.rename` might make the operation seem like it
is in-place. However, we have many "verb" APIs: `tensor.add(other)`, for
example, doesn't add other to tensor in-place, but `tensor.add_(other)`
does.
`tensor.rename_` does exactly the same place as `tensor.rename`, but
in-place.
Test Plan: - [namedtensor ci]
Differential Revision: D17502021
Pulled By: zou3519
fbshipit-source-id: 6a5b93136a820075013cd1e30fb8fc6b9d77d7d9
