clox throws an error on the string_equality benchmark

[ajeetdsouza]

To reproduce:

make clox
./clox test/benchmark/string_equality.lox

Output:

[line 32] Error at 'a4': Too many constants in one chunk.
[line 32] Error at 'a7': Too many constants in one chunk.
[line 32] Error at 'a5': Too many constants in one chunk.
[line 32] Error at 'a7': Too many constants in one chunk.
[line 32] Error at 'a6': Too many constants in one chunk.
[line 32] Error at 'a7': Too many constants in one chunk.
[line 32] Error at 'a7': Too many constants in one chunk.
[line 32] Error at 'a7': Too many constants in one chunk.
[line 32] Error at 'a8': Too many constants in one chunk.
...

The same benchmark works correctly with jlox because it doesn't enforce limits on constants, but it would be great if the benchmark was updated to something that could run on both, so that they could be compared more easily.