Optimizes protocol conformance checking by pre-populating vtables with conformance information for "fast-cast" protocols that have superclass constraints.
This optimization works by:
1. Identifying classes that are eligible for optimization (have fixed metadata layout, are not open access, and belong to the current module)
2. Finding protocols, enabled for fast casting nad that have superclass constraints and belong to the current module
3. Pre-computing conformance checks for these protocols and storing the results directly in the vtable, eliminating the need for runtime conformance lookups
Erik Eckstein