Progress towards #17957
CoreM, I did not move the
HscEnv to other
modules as thoroughly as I usually do. This does mean that risk of
DynFlags "creeping back in" is higher than it usually is.
After we do the same process to the other Core passes, and then figure
out what we want to do about
CoreM, we can finish the job started
That is a good deal more work, however, so it certainly makes sense to land this now.