numeric.c: Extend Integer#[] to support range arguments
0b01001101[2, 4] #=> 0b0011 0b01001100[2..5] #=> 0b0011 0b01001100[2...6] #=> 0b0011 ^^^^
[Feature #8842]
numeric.c: Extend Integer#[] to support range arguments
[Feature #8842]