VM tweak to allow large hard-coded arrays.

[SirTony]

As it is, the VM will try to push all elements of a hard-coded array to the stack ahead of the NewArray instruction, which causes stack overflow exceptions if the array has ≥250 elements at most, which is a problem when hard-coding a lookup table for e.g. CRC-16-CCITT.

This change modifies the compiler to insert a new FlushArr instruction after every 32 elements (if the array is has more than 32 elements) to avoid overflows. This can be easily adjusted by changing this line:

Edit: I've realized it's both simpler and more sensible to just initialize arrays the same way objects are created. It solves the problem and minimizes the stack space required to create arbitrarily large arrays. Implementation has been changed accordingly. No new instructions needed.