Environment

JRuby 9.1

Expected Behavior

IO#seek and IO#tell should handle offsets larger than int32 range

Actual Behavior

As seen in #3435, we were not handling the return value of lseek properly, interpreting all negative values as error rather than just -1. That was fixed, but the larger issue is that our native lseek and much of the code that calls it only supports int32 range.

I have a commit coming shortly to fix the main #3435 issue, but this large problem needs to be addressed after 9.1.