--no-check-other Disable implicit tests: unset attribute, null receiver (dangerous)
--separate Use separate compilation
--no-inline-intern Do not inline call to intern methods
+ --no-union-attribute Put primitive attibutes in a box instead of an union
--inline-coloring-numbers Inline colors and ids
--bm-typing Colorize items incrementaly, used to simulate binary matrix typing
--phmod-typing Replace coloration by perfect hashing (with mod operator)