[nnc] Add a run method to TensorExprKernel that takes in output tensors (#69477)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/69477
This diff adds a new run method to `TensorExprKernel` which takes in
output tensors as inputs and stores the output in those given tensors.
ghstack-source-id: 146107009
Test Plan: buck test mode/dev-nosan //caffe2/test/cpp/tensorexpr:tensorexpr -- --exact 'caffe2/test/cpp/tensorexpr:tensorexpr - Kernel.RunWithAllocatedOutputs'
Reviewed By: ZolotukhinM
Differential Revision: D32823890
fbshipit-source-id: edc1f4839785124048b034060feb71cb8c1be34f
