At present TestRegs uses the sequence:

- create an Internals class that watches for new tasks
- if machine is XXX, create XXX process and then wait for stop

It can be simplified to instead look at the task to determine which ISA to use:

- Create TestLib.AttachedSyscallDaemonProcess ; this creates a generic attached
process (funit-regs) and runs until the first system call

- get the tasks' ISA and use that to select the relevant test ; which means that
for 32-on-64 the test automatically selects the 32-bit isa.

Not all tests need converting.

For the un-converted tests, create bug-reports and fail the test.