ns for fx: allow graph matching of parents of cat (#52368)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/52368
Before this PR, the graph matching logic only handles node arguments of
type Node. This PR extends it to allow to handle node arguments of type
Tuple, so that the matcher can properly navigate through the arguments
of `cat`.
Test Plan:
```
python test/test_quantization.py TestFXGraphMatcher.test_nodes_before_cat
```
Imported from OSS
Reviewed By: raghuramank100
Differential Revision: D26490101
fbshipit-source-id: 2de8d6acc30f237e22bfc3cfa89728b37411aab6
