* [Enhancement] Improve equality checks in layout nodes and fragment validation
* Enhanced the IsEqual method in LayoutNode and FragmentNode to include detailed comparisons of forward mappings, ensuring accurate equality checks.
* Introduced a new parameter in ProveFragmentContains to validate physical indices when checking fragment containment, improving correctness in layout validation.
* Removed obsolete test file related to layout inference.
This update aims to strengthen the integrity of layout comparisons and fragment validations in the system.
* lint fix
Lei Wang