Split arm_gen_test_cc into 3 functions, so that it can be reused
for non-branch TCG comparisons.
Backports commit 6c2c63d3a02c79e9035ca0370cc549d0f938a4dd from qemu
This is improved type checking for the translators -- it's no longer
possible to accidentally swap arguments to the branch functions.
Note that the code generating backends still manipulate labels as int.
With notable exceptions, the scope of the change is just a few lines
for each target, so it's not worth building extra machinery to do this
change in per-target increments.
Backports commit 42a268c241183877192c376d03bd9b6d527407c7 from qemu