optimization: Fix interpretation of certain "division" operations (issue #5)
optimization: Fix interpretation of certain "division" operations (issue #5)

The following command (with default -O2 optimization) would incorrectly not match anything:
regex -t0..10000 -nx '((xx)\2*)(?=\1$)'
But with "-O1" added to the command line, it worked properly.

Davidebyzero/RegexMathEngine,Davidebyzero/RegexMathEngine