Deduplicate a bit of hand-building of ir3_shader/_variant from
computerator and delay test. This also removes the need for
external things to depend on generated ir3_parser header.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5508>
With this I also brought in a few new control flow instruction disasm
tests that I'd made back when I wrote the disasm test, but which were too
far from correct to include until now.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4857>