Instance Variable Table Benchmark for mruby

Binary Size

2.1.2
File	Size (byte)
File	64-bit Word-boxing	64-bit NaN-boxing	64-bit No-boxing	32-bit Word-boxing	32-bit No-boxing
`mruby`	644,336	656,528	644,216	739,332	760,064
`libmruby.a`	1,009,874	1,015,690	1,008,108	945,660	965,094

Baseline
File	Size (byte)
File	64-bit Word-boxing	64-bit NaN-boxing	64-bit No-boxing	32-bit Word-boxing	32-bit No-boxing
`mruby`	697,520	713,976	709,624	752,620	777,512
`libmruby.a`	1,046,570	1,059,692	1,054,166	955,124	980,394

New
File	Size (byte)
File	64-bit Word-boxing	64-bit NaN-boxing	64-bit No-boxing	32-bit Word-boxing	32-bit No-boxing
`mruby`	697,520	718,112	709,616	756,704	777,460
`libmruby.a`	1,046,682	1,060,236	1,054,406	955,734	981,190