[backend] change three exceptions to developer-only visibility
[backend] change three exceptions to developer-only visibility

Summary:
- Array_out_of_bounds_l1
- Array_out_of_bounds_l2
- Class_cast_exception

Reviewed By: dulmarod

Differential Revision: D7098644

fbshipit-source-id: e172e38

jvillard/infer,facebook/infer,facebook/infer,jvillard/infer,facebook/infer,jvillard/infer,jvillard/infer,facebook/infer,jvillard/infer,facebook/infer,jvillard/infer,facebook/infer,facebook/infer,jvillard/infer