Once all the back-ends are using the new non-numeric Register type, NJ_USE_UINT32_REGISTER can be removed.
Nanojit has been dead for several years. Its Bugzilla component has been moved to the graveyard (bug 984276). I checked all the open bugs. They're all uninteresting, so I'm WONTFIXing them all. Apologies for the bugspam.