Fix the tests that are currently skipped due to setidentity segfaults.

[jpivarski]

Maybe the easiest way to fix them is to make them immutable.

After that, parameters will be the only non-immutable part of an array, so that would go next to make them purely immutable.

[jpivarski]

So it wasn't really the Identities themselves, just the assertions (see comment above). The reason I've never hit this before is that I'm only now compiling in Debug mode (to get faster recompilations). Most of the assertions were added early in the project and weren't tested. These were "wrong" in that they had off-by-one errors in their allowed range—an easy mistake to make.

Now all the tests are in and we're back to the level of testing we had before the change in build procedure (a little over 2000 assertions). I'll merge this as soon as the tests are green.

[jpivarski]

Also, this was a first test-run of the new localbuild.py script. It's a fantastic debugging workflow!

[jpivarski]

It was a mistake I had previously fixed for non-tuple RecordArrays, and it was right next to my mistake for the tuple RecordArrays. It would not have been fixed by transitioning setidentities → withidentities.

Good catch, Windows!