Mapping arrays of primitive types (int[]/float[]/etc.) leads to ClassCastException upon indexing

Relevant Search 5 test: org.hibernate.search.test.bridge.ArrayBridgeTest

Currently we mistake int[] for Integer[] at bootstrap, leading to a ClassCastException at runtime when we try to cast int[] to Object[].

There is probably a problem in the reflection code, and also we should probably introduce dedicated default container extractors for arrays of primitive types.

Also, obviously, some tests are missing.