b32cf75699
- Move LLVMDISubrangeTypeMetadataKind to end of LLVMMetadataKind enum.
Inserting a new enum constant in the middle of the enum breaks the ABI for
that enum. Commit e298fc2 introduced this issue, which was revealed because
the OCaml binding tests failed.
- Bring OCaml bindings up to date with LLVMMetadataKind enum.