`TypeAryKlassPtr` and `TypeAryPtr`/`TypeAry` in C2's typesystem currently don't keep track of atomicity of arrays. As a result, C2 might incorrectly fold loads from `GraphKit::load_object_klass` to non-atomic `TypeAryKlassPtr`, resulting in the `GraphKit::null_free_atomic_array_test` to incorrectly return false at runtime.