Support matching Args for SubgraphMatcher (#85456)
Subgraph matcher now handles the matching of non-Node arguments.
Here are the 4 cases
- pn is Node, gn is Node: this go through the regular _match_node() function
- pn is Noed, gn is not a Node: this is a match if only pn is a placeholder op
- pn is not Node, gn is Node: this is a no match case
- pn is not a Node, gn is not a Node: this will go through the argument comparison.
With this change
```
def target(x):
return foo(x, 3)
def pattern(x, y):
return foo(x, y)
```
is a match
Pull Request resolved: https://github.com/pytorch/pytorch/pull/85456
Approved by: https://github.com/jerryzh168
