[JIT] Fix double wildcard edge case for may_alias in SchemaInfo and improve formatting (#81439)
- Create c10::AliasTypeSet type def of vector<TypePtr> to match alias_analysis.cpp formatting and improve readability.
- Move canAliasTypeSetsAlias, mapTypeToAliasTypeSet, getAliasTypeSetContainedTypes, and getCorrectList to public in function_schema.h for use in SchemaInfo class.
**In the future it might be better to find a different home for most of these functions since they don't depend on functionSchema. **
- Created hash function for SchemaArgument
- Add assert to ensure that there is only 1 input and 1 output with each alias set (excluding wildcard)
- Fixed double wildcard input edge case for may_alias. (This is the case where if there is a schema with the form (Tensor(a) a, Tensor(*) b, Tensor(*) c) -> Tensor, and the argument values for 'a' and 'b' cause them to alias, then 'a' may also alias 'c'.
- Added tests for double wildcard case in may_alias, mismatching types in may_alias, and the uniqueness internal assert.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/81439
Approved by: https://github.com/davidberard98
