Equals comparison fails on extreme ends of 64-bit integers

[BrianM-UEI]

Equals comparison fails on numbers within the ranges of (-0x4000000000000000, -0x8000000000000000] and [0x4000000000000000, 0x7FFFFFFFFFFFFFFF] when compared against themselves. This was checked against the base mruby 3.2.0 and 3.1.0 (excluding the success outside of the signed int range) releases. (Note: The hex representation of signed int min works.)

-0x4000000000000001 == -0x4000000000000001
=> false
-9223372036854775808 == -9223372036854775808
=> false
-0x4000000000000000 == -0x4000000000000000
=> true
-9223372036854775809 == -9223372036854775809
=> true
0x4000000000000000 == 0x4000000000000000
=> false
0x7FFFFFFFFFFFFFFF == 0x7FFFFFFFFFFFFFFF
=> false
0x3FFFFFFFFFFFFFFF == 0x3FFFFFFFFFFFFFFF
=> true
0x8000000000000000 == 0x8000000000000000
=> true

[matz]

Thank you for the report.