[PyTorch] Fix a bunch of structured kernel refcounting (#71140)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71140
Structured kernels need to use the borrowing variants of the build APIs to TensorIterator. (I am working on a debug check for this, but it is currently too strict, and relaxing it does not catch these bugs.)
ghstack-source-id: 147191022
Test Plan: CI
Reviewed By: bdhirsh
Differential Revision: D33520003
fbshipit-source-id: 3b0ff9036acdb78ae6fc7489ed0ed487d5ff080f
(cherry picked from commit 80ef4e14e33718a9ad5aaefc218bb773e3b15a5c)
