November 2025: Strengthened Rust's type-safety in the coercion subsystem by introducing a targeted check to prevent intrinsic-to-function-pointer coercions during unified type coercions. Implemented checks to block intrinsic-to-fn-ptr casts in the unified coercion path, aligning with existing safety checks for other coercions. Added regression tests to cover edge cases and ensure correctness across coercion paths. Commit ebf1c38aa67f113c3a638fe467c75b0b154c903c. Business value: reduces risk of unsafe casts, improves compiler reliability and predictability of coercions for developers. Key achievements: - Implemented intrinsic-to-function-pointer coercion safety checks in unified coercions (commit ebf1c38aa67f113c3a638fe467c75b0b154c903c). - Added regression tests to cover edge cases and prevent regressions in coercion behavior. - Aligned coercion safety checks with existing intrinsic validation, strengthening type-safety guarantees. - Improved overall safety and maintainability of the Rust compiler's type-coercion system.