Reduced optimization level of generated machine.
Reduced optimization level of generated machine.

The generated code for Array#pack was exceeding 5kloc and taking over
30 seconds to compile. Using G1 instead of G2 halves the size of the
generated code. I plan to use benchmarks when this is more complete
to see if table-generated machines are as fast with smaller code size
and compile time.

rubinius/rapa